As we told you last week, 'Moneyball' actor Jonah Hill mentioned on 'Late Night with Jimmy Fallon' that he overheard 'Glee's' Matthew Morrison talking (and laughing) about him at the Fox upfront presentation.

Well, last night, Morrison answered Hill's complaints. But instead of apologizing to Hill, he actually made fun of the complaint...and challenged Hill to a duel on Fallon's show.

Now all that's left to figure out is what type of duel this will be. Pistols at dawn? A sword fight? Singing and dancing? (It's probably going to be singing and dancing. Those 'Glee' folks can't go five minutes without breaking into a Lady Gaga tune.)

Personally I'd like to see Hill and Morrison battle each other in one of Fallon's nightly contests, like Models and Buckets. Fans would love to see the two stars covered in baked beans and/or ice cream.

Take a look at Matthew Morrison's response to Jonah Hill on 'Late Night with Jimmy Fallon.' How would you like to see Morrison and Hill settle their feud?