Lee Ji-Eun 이지은 Born May 16 1993 In Seoul South Korea Known Professionally As IU 아이유 Is A South Korean Singer-Songwriter And Actress. She Signed With Kakao M Formerly LOEN Entertainment In 2007 As A Trainee And Debuted As A Singer At The Age Of Fifteen With Her Album Lost And Found. Although Her Follow-Up Albums Growing Up And IU...IM Brought Mainstream Success It Was After The Release Of "좋은 날" The Lead Single From Her 2010 Album REAL That She Achieved National Stardom.