Kim Sungkyu (김성규) (born April 28th, 1989 in North Jeolla, South Korea) is the leader and one of the two main vocalists of Korean idol group Infinite (인피니트). He made his official debut together with the rest of the group on June 9, 2010, with their debut song Come Back Again (다시 돌아와).

Before Infinite made their official debut, Sunggyu was one of the members featured in Epik High's Run MV as an instrument player. The group also had a show called You're My Oppa (당신은 나의 오빠) before debut, hosted by Epik High's Tablo and Mithra.

Sungkyu made a solo debut with his album 'Another Me', including the song 60 Seconds which featured his fellow band member L (Kim Myung Soo) in the music video Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.