Who has played in the most bands: Seo Eunkwang or Keith Buckley?
Seo Eunkwang Seo Eun-kwang (; born November 22, 1990), also simply known as Eunkwang, is a South Korean singer, entertainer, and the leader and main vocalist of the South Korean boy group BtoB.
Noel (band) Noel () is a South Korean boy band consisting of Jeon Woo-sung, Lee Sang-gon, Na Sung-ho and Kang Kyun-sung.