Defonzo Palmer

Defonzo "Skinny" Palmer is a Jazz musician who asked Bart to join him and Marcus "Marbles" Le Marquez. He plays the trumpet.

History
He, and Marbles, ask Lisa to sit in another chair in the audience as they wanted to jam with Bart. They nickname Bart "Tick-Tock" and make him part of their band. After Bart hurts his right arm, they hold a benefit concert to raise the money for Bart to have surgery to fix his arm again so he can drum.

His sister was married to Marbles until she died.