Se7en (Choi Dong Wook) has been signed with YG Entertainment since he debuted in 2003. In addition to his Korean music career, Se7en has also debuted in Japan (2005) and has made in-roads in China and the United States. He is also known for his decision not to lip synch during live performances, and his dedication to music has been recognized via several awards, including numerous MNET and Golden Disc awards and a Seoul Music Award. Unlike many Kpop idols, Se7en has publicly maintained a long-term romantic relationship. He has been dating Korean actress Park Han Byul since they met in high school.
In addition to music performance, Se7en has also tried his hand at acting, taking on a major role in the Kdrama Goong-S.
In 2009, Se7en made an unsuccessful foray into the United States music market; however, his Korean and Japanese comebacks in 2010 and 2012 have been met with high levels of interest and success.