Lee Se-jin (born 9 November 1981 in Seoul, South Korea) is a South Korean R&B singer known professionally as Lyn. Lyn was first scouted by an agency because of her voice and from there, she first made her debut under her real name, Lee Se-jin, and released an album. The album sold poorly and was barely known. Lyn then took some time off to train vocally. She made a comeback in 2002 under the name Lyn with her supposedly first album "Have You Ever Have A Broken Heart?".