ONF
| Name | ONF |
| Company | WM Entertainment |
| Fandom | Fuse |
| Year Debut | 2017 |
| Year Active | 7 |
| Year Disbanded | N/A |
Not Ranked
About
ONF (온앤 오프; acronym for On N Off) is a six-member South Korean and Japanese boy group formed by WM Entertainment. The group debuted on August 3, 2017 with originally seven members: Hyojin, J-US, E-Tion, Wyatt, MK, U, and Laun (left in 2019).
The name ONF means On N Off. It is pronounced ‘on and off’. The official fandom name of ONF is Fuse, which is an electrical reference to their name’s meaning, like a switch. It is also meant to combine the words ‘ONF’ and ‘muse’ to show their connection to their fans.
ONF Member Ages
ONF Age Ranking
Ranked from oldest to youngest.
| Member | Birthday | Age |
|---|---|---|
| 1. Hyojin | Apr 22, 1994 | 29 years old |
| 2. E-Tion | Dec 24, 1994 | 29 years old |
| 3. J-US | Jan 13, 1995 | 29 years old |
| 4. Wyatt | Jan 23, 1995 | 29 years old |
| 5. MK | Nov 16, 1995 | 28 years old |
| 6. U | Mar 16, 1999 | 25 years old |
ONF Member Heights
ONF Height Ranking
Ranked from tallest to shortest.
| Member | Height |
|---|---|
| 1. MK | 1.78 m (5'10") |
| 2. Wyatt | 1.75 m (5'9") |
| 3. J-US | 1.74 m (5'9") |
| 4. E-Tion | 1.73 m (5'8") |
| 5. Hyojin | 1.73 m (5'8") |
| 6. U | 1.70 m (5'7") |
Members and Position(s)
Members
ONF is composed of six members born between 1994 and 1999. Their names are: Hyojin, J-US, E-Tion, Wyatt, MK, and U. The oldest member is Hyojin (born Apr 22, 1994). The youngest member (maknae) is U (born Mar 16, 1999).
Position(s)
| Member | Position(s) |
|---|---|
| Hyojin | ON leader, main vocalist |
| E-Tion | lead vocalist |
| J-US | OFF lead dancer, vocalist, rapper |
| Wyatt | main rapper, main dancer, vocalist |
| MK | lead vocalist, rapper |
| U | main dancer, lead rapper, maknae |
Fun Facts and Trivia
- The oldest member of ONF is Kim Hyojin (born Apr 22, 1994).
- The youngest member (maknae) of ONF is Mizuguchi Yuto, better known as U (born Mar 16, 1999).
- The tallest member of ONF is MK with a height of 178 cm (5'10'').
- The shortest member of ONF is U with a height of 170 cm (5'7'').