Bleeding Gums appears on an episode of The Cosby Show , a reference to Bill Cosby often getting jazz musicians he liked to appear on the show ; in the episode , Cosby is voiced by The Simpsons regular Dan Castellaneta .
This is a reference to Cosby often getting jazz musicians he liked to appear on the show ; in the episode , Cosby is voiced by The Simpsons regular Dan Castellaneta .