Matthew Morrison responds to Jonah Hill's 'threat'

It's not quite the late night wars between Conan, Letterman and Leno, but it's not bad. It's Jonah Hill vs. Matthew Morrison.

The spat began last week when Jonah Hill recounted on "Late Night with Jimmy Fallon" a run-in he had with the "Glee" star. As Hill explains it, he felt he was the butt of a Morrison-told joke. So Hill issued a challenge. This brought on a strongly-worded rebuttal from Morrison.

In a video Morrison sent into "Late Night," he says, "Nobody messes with someone from musical theater" before grabbing a cane and fancifully dancing away.

The "fight" is on.

Here's the video...