Johnny 'Bananas' Devenanzio, a veteran of MTV's 'Real World: Key West' who's currently participating in 'The Challenge: Rivals,' is accusing HBO's 'Entourage' of some serious monkey business.

He's reportedly sent the network a cease & desist notice, and is threatening to sue for copyright infringement over the name of Johnny Drama's gorilla cartoon show 'Johnny's Bananas,' a central plotline on the new season of 'Entourage.'

Devenanzio has hired attorney Stephanie Ovadia, the lawyer who represented Lindsay Lohan in her suit against the E-Trade for a commercial that she claimed used her likeness.

In a series of tweets, Devenanzio, whose Twitter handle is @MTVBananas, explained why he's taking legal action.