이승기 appeared as the last original singer on 'Hidden Singer 8' and faced a fierce competition with 5 mock singers. Despite his 23-year career, he was shocked by the similarity of the mock singers' voices. He also announced that his wife, 이다인, is pregnant with their second child. | 이승기 appeared as the last original singer on 'Hidden Singer 8' and faced a fierce competition with 5 mock singers. Despite his 23-year career, he was shocked by the similarity of the mock singers' voices. He also announced that his wife, 이다인, is pregnant with their second child.