Claim: Girls' Generation has girls.

Lee Soon-kyu -LRB- born May 15 , 1989 -RRB- , known professionally as Sunny , is an American singer and actress currently based in South Korea . She debuted as a member of girl group Girls ' Generation in August 2007 , who went on to be one of the best-selling artists in South Korea and one of South Korea 's most popular girl groups worldwide . Apart from her group 's activities , Sunny has participated in numerous side projects including original soundtracks , television variety shows , musical acting and radio hosting .