Lady Gaga visited Jimmy Fallon's new gig to perform "Artpop" on the show's impressive stage as she played the piano and sung while a full orchestra joined her. NBC has been pulling out the big guns for Fallon's first week on the new job, with U2 performing recently and Jerry Seinfeld also doing a short comedy set last night.
Fallon also has a shtick that involves music-related sketches, where Fallon dresses up in ridiculous outfits and includes the talents of The Roots. Last night, Questlove and Black Thought reenacted a scene from "The Bachelor" (which you can see here at the 5:30 mark) before Jimmy and the Ragtime Gals put their own twist on R. Kelly's "Ignition (Remix)." Watch Lady Gaga as well as the Ragtime Gals below. -- Max Weinstein