Since 1996, SM Entertainment has produced many artists. In 1996, a five-male group H.O.T. made the first debut for the company. A three-female group S.E.S. debuted in 1997. They continued to produce Korean pop idols, such as the male duo Fly to the Sky in 1999, a female solo singer Boa in 2000, a dance group TVXQ in 2004, and a 13-male group Super Junior in 2005. In 1998, the six-male group Shinhwa also began their career with SM Entertainment. The company was also behind the debut of Girls' Generation, in 2007, Shinee in 2008, f(x) in 2009, Exo in 2012, Red Velvet in 2014 and NCT, a sub-unit based group in 2016, with NCT-U debuting first.