Jimmy Fallon made his debut last night as the new host of The Tonight Show!
He was joined by lots of stars, including Stephen Colbert, Will Smith, Tina Fey, Mariah Carey and U2!
The Irish rockers performed an acoustic version of Ordinary Love live on the couch:
Along with all the other antics during the night, Jimmy earned some real cash from all those celebs who never thought he'd end up presenting the show!
Take a look:
