Marvin Cobain

Marvin Cobain was a student at Springfield University who liked Sadgasm's song Politically Incorrect.

History
He listened to Homer's new band's first concert at Springfield University and loved their song. Then he called to his cousin Kurt Cobain, who was looking for a new sound, and told him about the song.

Trivia

 * Marvin Cobain's calling scene references to Marvin Berry from the movie Back to the Future.