Question: The woman who was replced by You Hee-yeol on K-pop Star 3 is of what nationality?
Sentence (from "BoA"): Kwon Bo-ah (Korean: 권보아 , , Japanese: クォン・ボア, 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.
Relevant evidence: Yes