Demi Lovato And Kelly Clarkson Sound AWESOME Singing "Have Yourself A Merry Little Christmas" (Video)

Demi Lovato and Kelly Clarkson performed a vocally-challenging version of Have Yourself a Merry Little Christmas in New York City on Friday night at the Z100 Jingle Ball. Luckily, both female powerhouses were up to the task. Watch the video below to see Kelly and Demi take turns doing the runs and harmonize perfectly together. No official word yet on whether an in-studio collaboration might be in the works between these too.

But that would be alright by us.

"I've been waiting for a long time to do a duet with Demi," Kelly said, which is ironic considering that Demi has often said how much she looked up to Kelly when she was starting out. "Wow, she can sing her butt off!"

Lady Gaga headlined the NYC event and LMFAO, Mindless Behavior, David Guetta, Foster the People, Karmin and Gym Class Heroes also performed. For more on the night, check out the recap on MTV.