What was the name of the group in which one half of the duo Toheart debuted, the other being Woohyun from Infinite?
Key (entertainer): Kim Ki-bum (born September 23, 1991), better known by his stage name Key, is a South Korean singer, actor, fashion designer and television presenter. Key (entertainer):  In 2008, Key debuted as a member of South Korean boy group Shinee, who later went on to become one of the best-selling artists in Korea.
i don't know