J-Lawr & Amy Schumer Boogie Atop A Piano During Billy Joel’s “Uptown Girl”

First Taylor Swift, now Billy Joel. Apparently 2015 is the year that really famous pop stars bring other really famous celebrities onstage with them to perform. The famous piano man was performing "Uptown Girl" for a packed Wrigley Field stadium in Chicago last night — then lo and behold, Amy Schumer pranced out onstage and lit up the floor. (It must be said that she has some serious moves. Perhaps a Dancing With the Stars stint it is order?)

QUEEEEEN. {Owner•Marie}

A photo posted by ? (@thedandelioninthespring) on

That's not all though. Moments later, Schumer's recent BFF and newly announced movie collaborator joined her onstage. Along with a handful of others, they did the Rockette's kick line, and then climbed on top of the piano to perform what appeared to be a loose interpretation of the twist. In sum: It was magical. Check out the impromptu performance below — and while you're at it, the original "Uptown Girl" video, featuring Joel's former wife Christie Brinkley, is definitely worth a revisit, too. Keep an eye out for the pop-and-locking, as well as crop tops.

More from Chicago

R29 Original Series