Seo Min-woo (Hangul: 서민우; born February 8, 1985) is a South Korean idol singer and actor. He is a member of South Korean boy group 100% under the label of TOP Media, as the leader and vocalist.
In 2009, Minwoo was featured during Andy's promotion for his song "Single Man", along with Jumper's second member Park Dong-min (Hangul: 박동민). Minwoo has also been active as an actor. He starred in KBS2's 2006 drama Sharp 3 (Korean: 반올림3), SBS's 2007 drama The King and I (Korean: 왕과 나), he also did a cameo for New Tales of Gisaeng in episode 12 and in two movies, Crazy Waiting (Korean: 기다리다 미쳐) (2007) and Where Are You Going? (Korean: 특별시 사람들) (2009).
2013: Love and War 2, 100%
In 2013, Minwoo made a cameo in KBS2's drama, Marriage Clinic: Love and War 2 (Korean: 부부클리닉 사랑과전쟁2).
Minwoo was chosen as a member of the group 100%, the 7-member South Korean boy group that debuted in September 2012 under Andy Lee's company TOP Media with their first single album We, 100%.
2014: Military Service
On March 4, 2014, Minwoo started his military service. He enlisted as an active-duty soldier. Minwoo finished his duty to mandatory military service after 21 months, on 4 December 2015.