VIDEO: James Corden Challenges Neil Patrick Harris to Epic Broadway Musical Riff-Off!

On last night's LATE LATE SHOW, guest Neil Patrick Harris interrupted James Corden during the show to challenge him to a riff-off to settle a dispute and figure out who is truly more Broadway. "Your silly jokes can wait Corden," declared NPH. "We have a score to settle." Below, watch the dueling Tony winners in a Broadway musical riff-off!

Each week night, James Corden invites the audience to join in on the fun as the Emmy Award-nominated THE LATE LATE SHOW WITH James Corden features a mix of celebrity guests, musical acts, games and sketches. Corden differentiates his show by giving a peek behind-the-scenes into the green room, bringing all of his guests out at once and lending his musical and acting talents to various sketches.

Additionally, bandleader Reggie Watts and the house band provide Corden with original, improvised music throughout the show. Since Corden took the reigns as host in March 2015, the show has quickly become known for generating buzzworthy viral videos, such as Carpool Karaoke.

Photo: Terence Patrick/CBS