Gumby and the Clayboys
Gumby had a band (The Gumbies) with his friends (Pokey, Prickle, Goo) in the 1988 version of his television claymation cartoon series. Then, when he stars in Gumby: The Movie (1995), he's apparently dumped them all for a bunch of ringers (Fatbuckle, Thinbuckle and Nobuckle). What a jerk! That's the cutthroat, take-no-prisoners world of animated clay lumps for ya.
Gumby played lead guitar. His band only did instrumentals. The Blockheads had a rival band, of course.
See also The Gumbies.