이수만
Leeteuk has explained that he uses a stage name because of his desire to have a name with the same effects as Kangta, and to prevent confusion between veteran actress Park Jung-soo and himself. His stage name Leeteuk, means "special". He previously rejected two of the stage names designated for him by his agency. The agency's then-chairman, Lee Soo-man, called him "a special child" and said the name Leeteuk suited him better.