Things are getting heated between Jonah Hill and Matthew Morrison. After the 'Moneyball' star called out the 'Glee' actor on 'Late Night With Jimmy Fallon,' Morrison responded by challenging the funny man to a duel on the late-night talk show.

"I heard that Jonah Hill … said I should bring my s--- next time. Well, guess what? This is next time," Morrison said in a pre-recorded message. "You think I can't sing my way out of this? Well, guess what, Jonah? I can sing my way out of it, and I can dance my way out of it."

He added, "So listen, Jonah, pick a date and I will meet you on 'Late Night With Jimmy Fallon' and we will settle this like men. But be afraid, be very afraid, because nobody messes with someone from musical theater."

Um, we're sure Hill is really shaking in his boots. While the initial beef between the two stars appeared to be real, Morrison's over-acted clip helps make this "feud" look like a mighty big publicity stunt. After all, Hill is voicing the title character in a new animated series called 'Allen Gregory,' which is set to premiere next month on FOX, the same parent network as 'Glee.' It's all so curious!

Watch Matthew Morrison Challenge Jonah Hill on 'Late Night With Jimmy Fallon'