Debuted on 2012-11-19. INFINITE's Leader Kim Sunggyu debut as a solo with the mini album 'Another Me'. Nell's Kim Jongwan gave his composed "Shine" to Sungkyu as a gift for his pre-release, which was released on November 7. Sung-kyu also composed the title track "60 Seconds" with Sweetune and personally participated in writing the lyrics for track "41 Days". He released his second album, '27', in June 2016. His songs usually have soft-rock genres, most notably on the second album as Nell's Kim Jongwan composed most of the songs.