OnlyOneOf
온리원오브
Label: 8D Creative
Debut Date: May 28, 2019
Debut Single: Time Leap
Fandom Name: IyOn
Years Active: 2019 – present
Website: onlyoneofmusic
Facebook: Onlyoneofofficial
Youtube Channel: OnlyOneOf official
Twitter: @OnlyOneOf_twt
Member’s Twitter: @onlyoneofmember
Instagram: onlyoneofofficial
TikTok: @onlyoneofofficial
Logo: 
kdiscography 