|The following information is from the Adventure Time comic book series. It may not be part of the same canon or continuity as the animated series.|
Anbaris is the pet of a magic child.
Anbaris was locked in a magic guitar because he peed on his owners guitar. But his owner got carried away and lost him.
He looks like a golden lion with horns.
"Thank you for unleashing me from my curse! I've been trapped in the guitar for months but no one would play me because they think I'm a monster." ~Anbaris