Eminem Eminem's head is held in a grip by Sacha Baron Cohen's legs

Aye carumba, what the heck is going on here?

Sparks flew at the MTV movie awards on Sunday as Eminem quite literally became the butt of Sacha Baron Cohen's joke.

The startled audience watched as Sacha's gay alter ego, Bruno, clad in little more than a thong and a pair of white feather angel wings was lowered head-first by wire cables straight onto Eminem.

With Sacha's exposed bare buttocks quite literally in his face, it was apparent that Eminem was thoroughly ticked off.

While the star-studded audience struggled to repress their laughter, the rapper made hisSacha Baron Cohen Sacha Baron Cohen  feelings clear.

"Are you serious? he fumed. "Get the f*** off me."

Eminem can't have thought Cohen was heaven-sent as he tried to extricate himself from the compromising position.

In the end, Em's bodyguards stepped in and wrestled Cohen away, but he continued the joke, shouting: "Hey, don't touch me. I've already got a boyfriend."

Eminem looked stony-faced as he stormed out of the LA awards ceremony with his entourage. It's not clear yet if his reaction was part of the joke.

What a hoot.