Jim Carrey and Conan O'BrienConan O'Brien had a few surprise guests during the Los Angeles stop of his 'Legally Prohibited From Being Funny on Television' comedy tour.

Jim Carrey joined the red-headed funnyman on stage to sing 'Superman (It Ain't Easy)' by Five for Fighting.

Carrey wasn't the only one to appear with O'Brien. Jon Hamm, Jonah Hill, Aziz Ansari and Jack McBrayer also made cameos, EOnline.com reports.

Watch Jim and Conan's Duet