Li'l B

Alien slug-being and wedding singer in "The Wedding Squanchers" episode (October 4, 2015) of animated sci-fi tv series Rick and Morty.

He performed an Alien Jazz Rap at the wedding of alien Birdperson and earthling Tammy Gueterman's on Planet Squanch. Unfortunately, the wedding is a setup, and the guests are wanted by the Galactic Federation. A firefight breaks out, and Li'l B (and others) are killed in the crossfire.