Quiz Show Q is hosted by the South Korean singer who signed with what company in 2007?
Quiz Show Q:  It is hosted by comedian Park Myeong-su, singer IU, and host Sun Bom Soo. IU (singer):  She signed with LOEN Entertainment in 2007 as a trainee and began her music career at the age of 15 with her debut album, "Lost and Found".
LOEN Entertainment