will.i.am and Usher

The Black Eyed Peas are pulling out all the stops for this Sunday’s Super Bowl XLV. The AP reports that Usher and former Guns N’ Roses guitarist Slash will join the supergroup as surprise guests during their halftime performance.

Ursh and Slash have previously collaborated with the Peas. The R&B singer linked up with will.i.am for the international smash “OMG,” while the guitarist has performed with Fergie, Taboo, will, and apl.de.ap during their recent tour and laid down the track “Beautiful Dangerous” with Fergie Ferg.

“This is the most exciting thing I’ve ever done,” tweeted will.i.am, currently in Dallas rehearsing for the big game. “Butterflys in my stomach…I feel like I’m in a dream…(We are playing the super bowl!!!).”

Details are mum on what the foursome will actually perform during the show, but will.i.am has revealed that they’ll tone it down by cutting some of their raunchier hits from the megamix. “We’re not playing ['My Humps']. It’s a club song,” he told The New York Times. “It’s like when I get around my mom, all my cuss words are deleted from my vocabulary. Automatically, they just leave. Super Bowl, yes, the words are not going to exist in my vocabulary.”