In this week’s episode of Radio Star, Lee Dong Woo, Jang Young Ran, Won Heum of NORAZO, and Jonathan appear on the show to share their candid stories. Dong Woo, who used to be a famous Tin Tin Five member, turns into a jazz vocalist. He shares his unyielding challenges such as musicals, radio show host, and even triathlon. Young Ran reveals she went through surgeries to overcome her complex. Jonathan from Congo shows off his fluent Korean.