There are many things Chris Brown should avoid doing right now, and performing on a song called “Maniac” is probably one of them.

Although the R&B artist had been scheduled to appear on Timbaland’s upcoming album, Brown was scratched from Shock Value II. The decision is reportedly due to Chris’ personal - not vocal - issues.

Sources tell TMZ that “some people” felt it was in appropriate for the singer to be associated with “Maniac.” (The song has since been retitled “The One I Love.”) But a rep for Timbaland claims Brown’s removal was simply a “creative decision for both parties.” Uh-huh...

Shock Value II and Chris Brown’s Graffiti both drop on December 8th.