Class of 3000 (2006)
Class of 3000 is a 2006 animation series created by Thomas W. Lynch and André 3000. It stars Janice Kawaye, Jennifer Hale and Phil LaMarr.
Magical, musical superstar Sunny Bridges, played by André 3000 of OutKast, has given up fame to return to his roots by becoming a music teacher and helping a cast of talented misfits make it to the top.
Official site
http://www.cartoonnetwork.com/tv_shows/classof3000/index.html