Lee Hoseok, better known by his stage name Wonho (원호), is a South Korean singer under Highline Entertainment. He is a former member of MONSTA X, which debuted under Starship Entertainment in 2015 through Mnet's survival show, NO.MERCY.

On October 31, 2019, Starship announced his departure from MONSTA X following allegations surrounding him. Following the conclusion of the investigation and with his name cleared of allegations, Wonho signed with Highline, a subsidiary of Starship, as a solo artist. The agency announced that he would be promoting as a solo artist and producer going forward.

Wonho announced the release of his first solo album, Love Synonym #1: Right for Me, for September 4, 2020. Losing You was released as the first single on August 14. Aside from the vocal, he participated in the songwriting, composing and producing of the song.