EVEN - Kimi ni Okuru Uta

Rin is a popular singer who is dating Mami. Rin loves Mami and was going to propose to her but they get into an argument. Takehito, a vocalist of the unpopular indie band "EVEN", sees Rin, who ran out of the home after the argument. Takehito tries to help Rin but both get involved in a car accident. Rin wakes up and realizes that he is in Takehito's body. Rin starts to write a song with the members of "EVEN" to inform Mami that he is in Takehito's body.
(Source: MDL)