This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

CHICAGO — Billy Joel fans got a big surprise Thursday night at his Wrigley Field concert according to WGNtv.com

Amy Schumer and Oscar winner Jennifer Lawrence joined Billy Joel on stage and danced barefoot on top of his grand piano during the classic hit, “Uptown Girl.”

https://instagram.com/p/66gfkjkw8J/?taken-by=thedandelioninthespring

https://twitter.com/amyschumer/status/637251105148301312/video/1

It’s a song that’s used in Schumer’s summer hit movie, “Trainwreck.”

The two rehearsed their routine with Billy in an empty Wrigley Field before the concert.

https://twitter.com/JLdaily/status/637044134377865216?ref_src=twsrc%5Etfw

Schumer and Lawrence have been spending a lot of time together lately writing a comedic screenplay in which they plan to co-star as sisters.

On Saturday, Schumer will take part in the oddball comedy fest in a Chicago suburb.