Kang Doo is a South Korean singer and actor. He is a former member of the group, The Jadu. He played the bass guitar and did backup vocals. Kang Doo is now replaced with a new member, Maru. He gave up his position for achieving his goal to become an actor. His real name is Song Yong Shik, which is considered to be an old-fashioned name. He graduated from Seo Kyung University. Kang Doo starred in the third season of MBC's popular sitcom, Hello, Francesca. He also acted in MBC's Goong S as Lee Joon, however, the series was not successful. In Goong S, he did not receive many positive comments from the viewers. This was his first time to act in major broadcasting program. Later, he revealed that it was quite hard to bear in mind the criticisms. (Source: Wikipedia) Watch drama online for free.