Detroit Metal City

This is probably the funniest thing I've seen in a long while. The series can be streamed here. Check out the synopsis of the story:

Based on the seinen manga by Wakasugi Kiminori serialised in Young Animal.

Souichi Negishi is a shy young man who came from the rural Ota Prefecture to Tokyo for college and wished to become a trendy pop singer. However, for some reason he became the singer and songwriter of a metal band named "Detroit Metal City," with a stage name "Johannes Krauser II." Whenever he wears the heavy makeup, Negishi becomes a completely different person, shouting the most vulgar profanities beyond anyone's imagination. With the popularity of DMC increases, Negishi starts worrying his double personalities can have negative effects on his (romantic) life off stage.