Video: Demi Lovato And Kelly Clarkson Perform Christmas Duet At Z100 Jingle Ball

Kelly Clarkson and Demi Lovato - Z100

If you know anything about Demi Lovato (or have ever seen this revealing video), youd know how much last night meant to her.

During the annual Z100 Jingle Ball concert at Madison Square Garden, the 19-year-old pop star got the chance to duet with her idol and American Idols Kelly Clarkson.

The two big-voiced Texas girls joined their powerful pipes for a festive and divalicious performance of Have Yourself A Merry Little Christmas.

And if the performance wasnt enough, Kelly made Demis night even more special with her post-performance tweet: girl we have got to sing together again! You have such a powerful and beautiful voice! I love your spirit! Thanks for singing with me tonight.

Kelly and Demis duet made us ache for an official collaboration, which could happenonce Demi comes down from Cloud 9. Oh my God.. Oh my God. Oh my God, Demi tweeted. I. Just sang. With Kelly. Clarkson. #ahhhhhhh

Watch Kelly and Demis duet below: