K-pop Star 2 involves a South Korean singer and actress active in South Korea and Japan.
Kwon Bo-ah ( 권보아 , , クォン ・ ボア , 権宝兒 , born November 5 , 1986 ) , commonly stylized and known by her stage name BoA , is a South Korean singer and actress active in South Korea and Japan . K-pop Star 2 . Yoon Do-hyun returned as host and narrator , and Boom returned as live host . Yang Hyun-suk , Park Jin-young , and BoA returned as judges .