Who's Playing at The Muppets' Electric Mayhem Festival?

Muppets Most Wanted stars Dr. Teeth and Floyd Pepper already provided lyrical insight into some of music's toughest questions, and they're back with more hilarious commentary on pop's biggest acts.

After trekking on a global tour with the rest of the Muppets gang, the rockstars chatted with host Esteban Serrano about the movie's string of celebrity cameos ranging from Lady Gaga to Celine Dion. While Dr. Teeth wants to collaborate with Usher and Gaga, his fellow Muppets star prefers the likes of Josh Groban and Diddy.

The pair also revealed which classic rockers are being featured in the Electric Mayhem Festival lineup...except there's just one problem that might halt the entire show.

Check out the exclusive clip above, and don't miss Top 20 Countdown every Tuesday at 9/8C on Fuse.