# Regular-Irregular

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***Regular-Irregular*** is the first [studio album](/source/Studio_album) by South Korean boy band [NCT 127](/source/NCT_127), the second sub-unit of the South Korean boy band [NCT](/source/NCT_(band)). Described as a multi-genre concept album with a total of eleven tracks, the album was released by [SM Entertainment](/source/SM_Entertainment) on October 12, 2018, and distributed by [IRIVER](/source/Iriver_Inc). This marks NCT 127's first Korean major release after a year and four months since their previous EP, *[Cherry Bomb](/source/Cherry_Bomb_(EP))*, released in June 2017.[1] It is also their first release as a ten-member group after Jungwoo was added in September 2018.[2][3] It is also the group's last release to date featuring member Winwin, as he would focus his promotions on [WayV](/source/WayV) following the album's release.

Upon the album release, *Regular-Irregular* attained commercial success in both South Korea and other countries. The album debuted atop the [Gaon Album Chart](/source/Gaon_Album_Chart) and became one of the few releases to stay No. 1, longer than a single week in 2018. Additionally, it debuted at No. 86 on the US [*Billboard* 200](/source/Billboard_200) in the week of October 27, 2018, thus becoming NCT 127's first entry on the chart.[4] It is also the group's highest charting release on the UK and France's download albums charts and became their first entry on the Australian Digital Albums chart.

The album's repackage, ***Regulate***, was released on November 23, 2018, along with its lead single, "Simon Says".[5]

## Background and release

### *Regular-Irregular*

On September 17, a teaser video was released on the group's [Twitter](/source/Twitter) account, showcasing flashes of the words "regular", "irregular", and the new NCT 127 logo. Later that day, SM Entertainment announced the addition of Jungwoo to the group and that NCT 127 would release its first full-length album *Regular-Irregular* on October 12.[6] Following the announcement, NCT 127 entered the Billboard's Social 50 at number five for the week of September 29.[7] Photo and video teasers were released from September 18 up to October 11.[8]

On October 8, NCT 127 released the music video of their new single "Regular" in English version, which marks the group's first English-language song.[9] The music video for the Korean version of "Regular" was released on October 11, 2018.[10] The album was released on October 12, 2018.[11]

### *Regulate*

On November 13, 2018, NCT 127 announced the release of the album's repackage, *Regulate* with teasers of the members.[12] The album and its lead single, "Simon Says", was released on November 23, 2018.[5][13]

## Composition

The album's theme revolves around the exploration of reality and dreams. The album incorporates several genres; such as [pop](/source/Pop_music), [dance](/source/Dance-pop), [R&B](/source/Contemporary_R%26B), [ballad](/source/Ballad) and [hip-hop](/source/Hip_hop).[11]

"Regular" is described as a high-energy [hip hop](/source/Hip_hop) track with sensual Latin vibes that incorporates Spanish lyrics.[9] *[Billboard](/source/Billboard_(magazine))* noted that unlike many Korean songs re-released by K-pop bands in other languages, the English version of "Regular" differentiates itself from the Korean version through the content of their lyrics.[11] The Korean one addresses their current state as a group trying to make its way in the world, in contrast to the hopeful, goal-oriented swagger expressed in the English alternative. While both versions focus on money, the Korean addresses the reality of their world versus the luxurious lifestyle expressed in the English.[11][14]

The sixth track, "Interlude: Regular to Irregular" contains the music used in the video "[NCT 2018 Yearbook #1](/source/NCT_2018_Empathy)" as well as a rearranged version of a future bass composition (titled "The 7th Sense – Reverse") by Korean [electronica](/source/Electronica) musician Hitchhiker that was performed by the sub-unit in the [2017 Mnet Asian Music Awards](/source/2017_Mnet_Asian_Music_Awards). The track also contains narrations done in Korean (by new member Jungwoo), Japanese (by Yuta) and Mandarin (by Winwin), as well as a verse from the American author [Edgar Allan Poe](/source/Edgar_Allan_Poe)'s 1849 poem, "[A Dream Within a Dream](/source/A_Dream_Within_a_Dream)" narrated by member Johnny. The eighth track, "Come Back", is a Korean version of the originally released Japanese track off their debut Japanese EP [Chain](/source/Chain_(NCT_127_EP)). The bonus track, "Run Back 2 U", is the full version of the demo song originally titled "Bassbot" previously performed by NCT members Johnny, Taeyong, Yuta, Ten and Jaehyun and then-SM trainee Hansol in a pre-debut video under the company's pre-debut group [SM Rookies](/source/SM_Rookies) in 2015.

## Promotion

### *Regular-Irregular*

NCT 127 kick-started promotions for the album in the U.S. with television promotions and a partnership with [Apple Music](/source/Apple_Music).[15][16] They performed their new single "Regular" as well as "Cherry Bomb" on the *[Jimmy Kimmel Live!](/source/Jimmy_Kimmel_Live!)* outdoor concert series stage on October 8, marking their U.S. television debut;[17][18] the group also appeared at the 2018 [American Music Awards](/source/American_Music_Awards).[19] They performed at [ABC](/source/American_Broadcasting_Company)'s [Mickey](/source/Mickey_Mouse)'s 90th Spectacular TV special on November 4.[20]

NCT 127 was also announced as Apple Music's 'Up Next' Artist; the group was featured on Apple-based platforms, including a short film exploring the band and their music, an Apple Music–only choreography video, and a [Beats 1](/source/Beats_1) interview.[21][22]

### *Regulate*

On November 22, it was announced that member Winwin would not participate in promotions for *Regulate* as he was preparing for the group's [Chinese activities](/source/WayV).[23] NCT 127 performed "Simon Says" on Music Bank, Inkigayo, and Show! Music Core, as well as the Korean version of "Chain" on The Show and Show Champion.

## Reception

### *Regular-Irregular*

In a positive review, *Billboard* praised the album for showcasing both the group's artistry and skill through its diversity of sounds and experimental approach towards an album concept, helping to solidify their style.[11] The magazine ranked it as the 15th best K-pop album of 2018.[24] [MTV](/source/MTV) also named "Come Back" among the best K-pop B-sides of the year.[25]

### *Regulate*

On December 10, it was announced that "Simon Says" had become the group's first song to chart at number one on the US Digital Song Sales chart.[26]

## Track listing

Credits adapted from [Naver](/source/Naver_Corporation)

## Credits and personnel

Credits adapted from Xiami.[27]

- Seo Mi-rae (Butterfly) – vocal directing (track 1,3-5,11), background vocals (track 3), digital editing (track 1,3-4,11)
- GDLO (MonoTree) – vocal directing (track 2,9,12-14), digital editing (track 2,9,12-13)
- Chu Dae-kwan (MonoTree) – vocal directing (track 6,14)
- DEEZ – vocal directing (track 10)
- Andrew Choi – vocal directing (track 13), background vocals (track 1,10)
- Double Dragon (Hot Sauce Music Group) – vocal directing (track 14), digital editing (track 14)
- Kim Dong-hyun – rap directing (track 7)
- 250 – rap directing (track 7), digital editing (track 7)
- [NCT 127](/source/NCT_127) – vocals, background vocals - Taeil – vocals, background vocals (track 7,12) - Johnny – vocals, background vocals (track 8,12) - [Taeyong](/source/Lee_Tae-yong) – vocals, background vocals (track 7,12) - Yuta – vocals, background vocals (track 7-8,12) - [Doyoung](/source/Doyoung_(singer)) – vocals, background vocals (track 4-5,7,12) - [Jaehyun](/source/Jaehyun_(singer)) – vocals, background vocals (track 7,12) - [Winwin](/source/Winwin) – vocals, background vocals (track 8,12) - Jungwoo – vocals, background vocals (track 7-8,12) - [Mark](/source/Mark_(rapper)) – vocals, background vocals (track 7,12) - [Haechan](/source/Haechan) – vocals, background vocals (track 12)
- Micah Powell – background vocals (track 1)
- DAWN – background vocals (track 2)
- Wilbart "Vedo" McCoy III – background vocals (track 2,13)
- Varren Wade – background vocals (track 3)
- Ra.D – background vocals (track 4)
- BrotherSu – background vocals (track 4)
- J. Roston – background vocals (track 5)
- OneStar (MonoTree) – background vocals (track 6)
- Bobii Lewis – background vocals (track 9), all instruments (track 9)
- [Yoo Young-jin](/source/Yoo_Young-jin) – background vocals (track 9), mixing engineer (track 6)
- Hwang Seong-je (Butterfly) – background vocals (track 11)
- Megan Bowen – background vocals (track 14)
- Kim Gyeong-min – piano (track 8)
- Hitchhicker – guitar (track 8), digital editing (track 8)
- ON the string – string (track 8)
- Choi Jin-seok – all instruments (track 9)
- Jeong Ho-jin – recording (track 1,8,11)
- Choi Jin-yeong – assistant recording (track 1,8,11)
- Kang Jae-gu – recording (track 1,4,11)
- Hong Su-yeon – assistant recording (track 1,4,11)
- Kwak Jeong-sin – recording (track 2,5-6,9,12-13)
- Jeong Mo-yeon – recording (track 2,5-6)
- Kwon Yoo-jin – recording (track 3)
- Hong Seong-jun – recording (track 4,7), digital editing (track 5-6)
- Chu Dae-kwan – recording (track 6)
- Sin Dae-seop – recording (track 8)
- Jeong Gi-hong – recording (track 8)
- Choi Da-in – recording (track 8)
- Lee Chan-mi – assistant recording (track 8)
- On Seong-yoon – recording (track 8,10)
- Lee Ji-hong – recording (track 10), digital editing (track 9-10,14), mixing engineer (track 2,5,7,9-10,12-14)
- An Chang-gyu – recording (track 10)
- Lee Min-gyu – recording (track 13-14), mixing engineer (track 1,3-4,11), mixing (track 1)
- Juan "Jay P" Mendez – digital editing (track 2,13)
- Min Seong-soo – digital editing (track 2)
- Jang Woo-yeong – digital editing (track 4,9,12)
- Jung Eui-seok – digital editing (track 8), mixing (track 2,8,13)
- Kim Cheol-sun – mixing (track 3,5,12,14)
- Nam Gung-jin – mixing (track 4,6,11)
- Kim Han-gu – mixing (track 7)
- Goo Jong-pil (BeatBurger) – mixing (track 9-10)

### Locations

**Recording**

- sound POOL studios
- GaeNaRi Sound
- The Vibe Studio
- doobdoob Studio
- MonoTree Studio
- YIREH STUDIO
- Seoul Studio
- SM Big Shot Studio

**Editing**

- doobdoob Studio
- GaeNaRi Sound
- SM LVYIN Studio

**Mixing**

- SM Big Shot Studio
- SM LVYIN Studio
- SM Blue Cup Studio
- SM Blue Ocean Studio
- SM Concert Hall Studio
- SM BOOMINSYSTEM
- SM Yellow Tail Studio
- sound POOL studios

## Charts

### Album

Weekly chart performance for Regular-Irregular and Regulate Chart (2018) Peak position Regular- Irregular Regulate Australian Digital Albums (ARIA)[28] 19 — French Download Albums (SNEP)[29] 43 — Japanese Albums (Oricon)[30] 6 — Japanese Hot Albums (Billboard Japan)[31] 24 — South Korean Albums (Gaon)[32][33] 1 2 UK Download Albums (OCC)[34] 42 — — 46 9 US Top Album Sales (Billboard)[35] 23 —

Year-end charts for Regular-Irregular and Regulate Chart (2018) Position Regular- Irregular Regulate South Korean Albums (Gaon)[36] 17 29 US World Albums (Billboard)[37] 14 —

### Single

"Regular" weekly charts Chart (2018) Peak position Singapore (RIAS Regional)[38] 6 South Korea (Gaon)[39] 92 South Korea (Kpop Hot 100)[40] 16 US World Digital Songs (Billboard)[41] 2

"Simon Says" weekly charts Chart (2018) Peak position New Zealand Hot Singles (RMNZ)[42] 37 South Korea (Kpop Hot 100)[43] 39 US World Digital Songs (Billboard)[44] 1

## Sales

Sales of Regular-Irregular Region Sales Japan (Oricon) 28,435[45] South Korea (Gaon) 370,616[46] United States (Billboard) 8,000[47]

## Accolades

Music program awards Song Program Date "Regular" The Show October 16, 2018 October 23, 2018 M Countdown October 25, 2018 Music Bank October 26, 2018

## Release history

Region Date Format Label South Korea October 12, 2018 CD · digital download · streaming SM Entertainment · iRIVER United States Various Digital download · streaming

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1. ["Top Albums Téléchargés"](http://www.snepmusique.com/tops-semaine/top-albums-telecharges/?ye=2018&we=42). [Syndicat National de l'Édition Phonographique](/source/Syndicat_National_de_l'%C3%89dition_Phonographique). October 19, 2018. Retrieved October 25, 2018.

1. ["Oricon Weekly Album Chart (2018年10月29)"](https://www.oricon.co.jp/rank/ja/w/2018-10-29/) (in Japanese). *Oricon*. [Archived](https://web.archive.org/web/20181024061351/https://www.oricon.co.jp/rank/ja/w/2018-10-29/) 2018-10-24 at the Wayback Machine. Retrieved October 24, 2018.

1. ["Hot Albums, \[ 2018/10/17 公開\]"](http://www.billboard-japan.com/charts/detail?a=hot_albums&year=2018&month=10&day=22) (in Japanese). *Billboard Japan*. October 17, 2018. [Archived](https://web.archive.org/web/20200722203233/http://www.billboard-japan.com/charts/detail?a=hot_albums&year=2018&month=10&day=22) July 22, 2020 at the Wayback Machine. Retrieved October 24, 2018.

1. ["Gaon Album Chart – Week 41, 2018"](https://web.archive.org/web/20181018024721/http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=41&hitYear=2018&termGbn=week) (in Korean). *[Gaon Chart](/source/Gaon_Music_Chart)*. Archived from [the original](http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=41&hitYear=2018&termGbn=week) on October 18, 2018. Retrieved October 18, 2018.

1. ["Gaon Album Chart – Week 48, 2018"](https://web.archive.org/web/20181206025858/http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=48&hitYear=2018&termGbn=week) (in Korean). *[Gaon Chart](/source/Gaon_Music_Chart)*. November 25, 2018. Archived from [the original](http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=48&hitYear=2018&termGbn=week) on December 6, 2018. Retrieved December 6, 2018.

1. ["*NCT#127 Regular-Irregular* (2018)"](https://www.officialcharts.com/charts/albums-downloads-chart/20181019/7003/). *[Official Charts](/source/Official_Charts_Company)*. October 19, 2018. [Archived](https://web.archive.org/web/20200622064254/https://www.officialcharts.com/charts/albums-downloads-chart/20181019/7003/) June 22, 2020 at the Wayback Machine. Retrieved March 16, 2020.

1. ["Top Album Sales"](https://www.billboard.com/artist/nct-127/chart-history/tsl/). *Billboard*. October 27, 2018. Retrieved June 4, 2019.

1. ["2018년 Album Chart"](http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=2018&hitYear=2018&termGbn=year). *Gaon*. [Archived](https://web.archive.org/web/20190322041459/http://gaonchart.co.kr/main/section/chart/album.gaon?nationGbn=T&serviceGbn=&targetTime=2018&hitYear=2018&termGbn=year) March 22, 2019 at the Wayback Machine. Retrieved January 16, 2019.

1. ["Year-End Charts: World Albums"](https://www.billboard.com/charts/year-end/2018/world-albums). *[Billboard](/source/Billboard_(magazine))*. 2 January 2013. [Archived](https://web.archive.org/web/20200708143335/https://www.billboard.com/charts/year-end/2018/world-albums) July 8, 2020 at the Wayback Machine. Retrieved June 7, 2019.

1. ["Singapore Top 30 Regional Streaming Chart Week 32"](http://www.rias.org.sg/chart.pdf). Recording Industry Association (Singapore). [Archived](https://web.archive.org/web/20181030173412/http://www.rias.org.sg/chart.pdf) October 30, 2018 at the Wayback Machine.

1. ["Digital Chart – Week 42 of 2018"](http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=42&hitYear=2018&termGbn=week) (in Korean). *Gaon Chart*. [Archived](https://web.archive.org/web/20181025071227/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=42&hitYear=2018&termGbn=week) October 25, 2018 at the Wayback Machine. Retrieved March 28, 2019.

1. ["Billboard Kpop Hot 100: October 27, 2018"](https://web.archive.org/web/20200805224554/https://www.billboard.com/charts/billboard-korea-k-pop-100/2018-10-27). *[Billboard](/source/Billboard_(magazine))*. October 27, 2018. Archived from [the original](https://www.billboard.com/charts/billboard-korea-k-pop-100/2018-10-27) on August 5, 2020. Retrieved March 28, 2019.

1. ["NCT 127 Chart History: World Digital Songs"](https://web.archive.org/web/20190404111255/https://www.billboard.com/biz/charts/2018-10-27/world-digital-song-sales). *Billboard*. Archived from [the original](https://www.billboard.com/biz/charts/2018-10-27/world-digital-song-sales) on 2019-04-04. Retrieved March 28, 2019.

1. ["NZ Hot Singles Chart"](https://aotearoamusiccharts.co.nz/archive/hot-singles/2018-11-30). [Recorded Music NZ](/source/Recorded_Music_NZ). December 8, 2018. [Archived](https://web.archive.org/web/20181130115933/https://nztop40.co.nz/chart/hotsingles?chart=4563) November 30, 2018 at the Wayback Machine. Retrieved December 6, 2018.

1. ["Billboard Kpop Hot 100: December 12, 2018"](https://web.archive.org/web/20181218044245/https://www.billboard.com/charts/billboard-korea-k-pop-100/2018-12-08). *[Billboard](/source/Billboard_(magazine))*. December 12, 2018. Archived from [the original](https://www.billboard.com/charts/billboard-korea-k-pop-100/2018-12-08) on December 18, 2018. Retrieved May 30, 2019.

1. ["US World Digital Song Sales"](https://www.billboard.com/biz/charts/world-digital-song-sales). *Billboard*. December 8, 2018. [Archived](https://web.archive.org/web/20190603083844/https://www.billboard.com/biz/charts/world-digital-song-sales) June 3, 2019 at the Wayback Machine. Retrieved December 6, 2018.

1. Physical sales of *Regular-Irregular*: * ["ja:月間 アルバムランキング 2018年10月度"](https://web.archive.org/web/20190106204623/https://www.oricon.co.jp/rank/ja/m/2018-10/p/3/) [Monthly album ranking, October 2018]. *Oricon*. Archived from [the original](https://www.oricon.co.jp/rank/ja/m/2018-10/p/3/) on January 6, 2019. Retrieved March 1, 2023. * ["ja:月間 アルバムランキング 2018年11月度"](https://web.archive.org/web/20190326144359/https://www.oricon.co.jp/rank/ja/m/2018-11/p/5/) [Monthly album ranking, October 2018]. *Oricon*. Archived from [the original](https://www.oricon.co.jp/rank/ja/m/2018-11/p/5/) on March 26, 2019. Retrieved March 1, 2023. * ["ja:週間 アルバムランキング 2018年12月10日付"](https://web.archive.org/web/20181205135615/https://www.oricon.co.jp/rank/ja/w/2018-12-10/) [Weekly album ranking, December 10, 2018]. *Oricon*. Archived from [the original](https://www.oricon.co.jp/rank/ja/w/2018-12-10/) on December 5, 2018. Retrieved March 1, 2023.Digital sales of *Regular-Irregular*: * ["ja:週間 デジタルアルバムランキング 2018年10月22日付"](https://web.archive.org/web/20181024020455/https://www.oricon.co.jp/rank/dia/w/2018-10-22/) [Weekly digital album ranking, October 22, 2018]. *Oricon*. Archived from [the original](https://www.oricon.co.jp/rank/dia/w/2018-10-22/) on October 24, 2018. Retrieved March 1, 2023.

1. ["Circle Chart's Observation Note #1 \[Album Sales\]"](https://www.youtube.com/watch?v=ge3mo0xLBuM) (in Korean). *OK POP!! (오케이팝!!) on [YouTube](/source/YouTube)*. [Circle Music Chart](/source/Circle_Music_Chart). September 9, 2022. [Archived](https://web.archive.org/web/20220911153422/https://www.youtube.com/watch?v=ge3mo0xLBuM) September 11, 2022 at the Wayback Machine. Retrieved September 11, 2022.

1. ["NCT 127 Earn First Billboard 200 Entry With 'Regular-Irregular' Album"](https://www.billboard.com/pro/nct-127-regular-irregular-album-billboard-200/). *Billboard*. November 22, 2018. [Archived](https://web.archive.org/web/20181125202412/https://www.billboard.com/articles/columns/k-town/8481276/nct-127-regular-irregular-album-billboard-200) November 25, 2018 at the Wayback Machine. Retrieved December 6, 2018.

---
Adapted from the Wikipedia article [Regular-Irregular](https://en.wikipedia.org/wiki/Regular-Irregular) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Regular-Irregular?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.