Lee Dong-hae, referred to as Donghae, is a South Korean singer, songwriter, composer and actor. He became a trainee under SM Entertainment after winning a prize at SM's Youth Best Contest in 2001. After four years of training, Donghae debuted as a member of boy group Super Junior in November 2005. In July 2023, Lee left SM Entertainment, although he remains as a member of Super Junior. Two months later, Lee along with Eunhyuk founded new label ODE.ent to managed his solo activities as well as D&E's activities and he also charges as a Co-CEO of the label.

Super Junior-M, is the third sub-unit of the South Korean boy band Super Junior focusing on Chinese market, currently composed of six Super Junior members Sungmin, Eunhyuk, Siwon, Donghae, Ryeowook, Kyuhyun and special member Zhou Mi. The sub-unit is known as the first international music group in the Chinese music industry to have members of both Chinese and Korean descent.The sub-unit has released two studio albums and three EP’s since their debut.