Kelly Clarkson is teaming up with Demi Lovato for a new collaboration.

The pop stars duetted on Have Yourself A Merry Little Christmas at New York's Z100 radio station's Jingle Ball concert on Friday (09Dec11) and Clarkson later raved about the track.

She sent a message to Lovato on Twitter.com declaring, "Girl we have got to sing together again! You have such a powerful and beautiful voice! I love your spirit."

Now the former American Idol winner has revealed plans to team up with Lovato again on a new tune.

She tells JustJared.com, "It's a song a friend of mine wrote. It's killer and I've been wanting to sing it for a while. It's very like urban, pop/rock, and we both like that. It's my normal anthem, shove it in your face (type of song)."