Kim Woo Sung (김우성) or Sammy (February 25, 1993) is the leader of the korean band The Rose, where he is also the main vocalist and electric guitarist. Recently he was in JTBC's survival show 'SuperBand'. His solo debut will be on July 25th. He was born in California, Los Angeles and was a contestant on 'KpopStar' on season one. He is also a MC of Arirang TV's After School Club.