Jimmy Fallon and The Office’s John Krasinski battled it out on Late Night with Jimmy Fallon on Tuesday night. Fallon hosted a lip-sync sing-off.

“This was a game that John created and challenged me to do on the show tonight,” Fallon proposed.

The comedians faced against each other with songs like Katy Perry’s “Teenage Dream,” Melissa Manchester’s “Don’t Cry Out Loud” and Run DMC's "Peter Piper." Before they started, Krasinski jokingly referred to the battle as “8 Mile.”

But it was the Boyz II Men tune that Krasinski really ran wild with, stealing the show, The Wrap reports.

Krasinski has had a whirlwind week as he prepares for the end of his NBC show The Office. He attended the Met Gala on Monday, Fallon’s show on Tuesday and the first part of the series finale will air on Thursday.

LA Times reports that the show will end its 9-season run on May 16.

Watch the battle below, who do you think won?