ONF 온앤오프
  ONF 온앤오프 Group Info

  Tag Category: ONF


  Active: 2 years 5 months

  Gender: Male

  of Members: 7

  WM Ent.

  Subunit: On

  Subunit: Off


  ONF Group Stats Chart
Stage Name Birth Name Position Birthday Age Height Star Sign C Y BT
Hyojin 효진 Kim Hyojin Leader 25 Taurus Dog O
E-tion 이션 Lee Changyoon Vocal 25 Capricorn Dog B
J-Us 제이어스 Lee Seungjoon Dancer 25 Capricorn Dog AB
Wyatt 와이엇 Shim Jaeyoung Dancer, Rapper 24 Aquarius Dog O
MK 엠케이 Park Minkyun Vocal 24 177 cm or 5'9½" Scorpio Pig AB
U Mizuguchi Yuto Dancer 20 Pisces Hare AB
Laun 라운 Kim Minseok Dancer, Maknae 20 Leo Hare AB
  About ONF 온앤오프  

ONF 온앤오프 is a seven-member male idol group formed by WM Entertainment in 2017. The group consists of Hyojin, E-tion, J-Us, Wyatt, MK, U, and Laun. The group debuted on August 2, 2017, with their mini-album title track "ON/OFF."

The group name is short for "On N Off."


Prior to joining WM Entertainment, U was a trainee at JYP Entertainment. MK trained at Starship Entertainment. In 2015, MK participated in Mnet and Starship Entertainment's survival program "No.Mercy" but was eliminated. During the group's first showcase, Laun revealed that he was a trainee at Big Hit Entertainment and used to train together with BTS.

All members made up WM Boys. WM Boys performed as B1A4's back-up dancers at the 2016 Dream Concert in Seoul.

Members J-Us, Laun, and Wyatt made a cameo appearance in labelmate B1A4's mini-drama VCR "The Class," and E-tion and Wyatt appeared in another B1A4 VCR called "Feeling." Hyojin, E-tion, J-Us, and Wyatt were featured as dancers in the Korean version of the web drama "Loss:Time:Life."

On May 25 2017, all members of WM Boys attended IDOLCON 아이돌콘 and performed "Original," a B-side track from their soon-to-be released debut album.

2017: Debut

The group released their debut track "ON/OFF" on August 2, 2017. The following day, the group held their debut stage at "M Countdown." On November 5, the group joined the survival show "MIXNINE" and all of the members passed the auditions. On October 28, Kim Hyojin ("ON" unit leader) was revealed as the male center for the show's first performance mission, "Just Dance."


  • Hyojin and E-tion were both born in the Year of the Dog.
  • U and Laun were both born in the Year of the Hare.
  • E-tion and J-Us are both Capricorns.
  • Hyojin and Wyatt’s blood type is O.
  • J-Us, MK, U, and Laun’s blood type is AB.
  • Hyojin, J-Us, and Wyatt are from Seoul.
  • U, E-tion, and J-Us speak Japanese.
  • J-Us and Wyatt were born 10 days apart in 1995.
  Music Released
  SNS Official Links

Official site: On7Off.com