via omg.yahoo.com
Conan O'Brien had a surprise guest star at his stand up show -- "The Legally Prohibited From Being Funny On Television Tour" -- in LA Sunday night. When the comedian launched into Five for Fighting's "Superman (It's Not Easy)," he was joined by a superhero-clad Jim Carrey. The pair hammed it up during the hilarious duet, with Conan showing off some awkward dance moves and Carrey hitting the high notes (almost).
