One O One (원오원) is a four-member project group formed by Starhaus Entertainment. They debuted on October 1, 2015 with the single "Love You". The group consists of actors under Starhaus.


  • Kwak Si Yang (곽시양)
  • Kwon Do Kyun (권도균)
  • Song Won Seok (송원석)
  • Ahn Hyo Seop (안효섭)


Digital singles

Official links

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