Jimmy Fallon’s first episode at the helm of The Tonight Show was last night, and a host of celebrities came by to welcome him with a little cash. “I can’t believe this is happening. I’m really sitting here. I want to say thanks to all the fans for their support,” Fallon says at the beginning of the clip above. “And to my buddy who said I’d never be the host of The Tonight Show —  and you know who you are — you owe me a hundred bucks, buddy.”

And thus begins a long, long parade of famous friends who arrive to fork over a Benjamin, including Seth Rogen, Mike Tyson, and Lady Gaga. In the words of the final celebrity to pay up: “Welcome to 11:30, bitch.”