In 2005, Lee released his first solo album, No Pain, No Gain. The album received disappointing sales. In 2007, he released his second album Lee Jae Won Vol. 1.5 the single "I'm So Hot" which a part of the song samples a rhythm from Mariah Carey'sIt's Like That. Again the album received disappointing sales. In 2008, he was accused of rape and was arrested. The charges were dropped 3 hours later, but because of the event, he was unable to release his next album. In 2012, Jae Won released his new album in Chinese language. The album title is It's the time. It's received a positive response from fans in China. During his comeback performance, it was speculated that he will be planning to bring back the H.O.T. group to make a new album.