Oh Hye-rin (born May 7, 1989), better known by her stage name Raina, is a South Koreansinger-songwriter. She is the main vocalist of South Korean girl group After School and also the leader of After School sub-unit Orange Caramel. Raina debuted with the group in November 2009 following the release of the group’s second single, “Because of You”. She debuted as a solo singer in September 2014 with the single “You End, And Me”.
Raina tried to audition with JYP Entertainment to become a rapper before joining Pledis Entertainment. Before debut, Raina was a barista at the Coffee Bean & Tea Leaf. She also previously auditioned for Mnet’s Superstar K and was a student at the SM Academy. Raina is considered to be one of the best vocalists among idol girl groups in South Korea.
Raina officially debuted with After School for the release of their second single, “Because of You”, which attained No. 1 on the Gaon Digital Chart and won the “triple crown” on SBS Inkigayo. She debuted with After School sub-unit Orange Caramel on June 18, 2010, on KBS Music Bank with the song “Magic Girl”. She released her first solo single for the My Shining Girl OST in February 2012. Raina has written lyrics for Orange Caramel’s “Still…” and “Standing in This Place”. Raina also wrote the lyrics for After School’s “Love Love Love” and “Timeless”.
On June 12, 2014, Raina and rapper San E released an R&B duet called A Midsummer Night’s Sweetness. The collaboration topped all major music charts in South Korea soon after it was released, and it was No. 4 on the year-end Gaon Digital Chart.
In October 2014, Raina became the first After School member to make a solo debut with the release her solo single titled Reset, which was released on October 8. The single consists of title track You End, and Me and b-side track Repertoire.
Raina released her second digital single titled I Don’t Know on November 24, 2015.
On June 16, 2016, Raina and rapper San E released their second duet, called Sugar and Me.
On June 5, 2017, Raina released her third OST titled When Rain Falls for MBC’s drama “Lookout”; fellow After School member E-young participated in lyric-writing, composition and arrangement for the track. Raina released her first single album, Loop on July 31. The single album contains three tracks, with title track Loop featuring NU’EST’s Aron.
In August 2018, Raina released the single It’s Okay as part of a project single with producer Bumzu. Subsequently, on 5 September 2018, Raina’s soundtrack single entitled Home was released as the fifth OST for SBS’ drama “Your Honor”.