Demi Lovato & Nick Jonas Perform 'Avalanche' at KIIS FM Jingle Ball, Watch Here (VIDEO)

The 2014 Jingle Ball, put on by KIIS FM, was held Friday night (Dec 5) in Los Angeles at the Staples Center. It was a who's who of popular music including Taylor Swift, Ariana Grande and Demi Lovato. 

During Nick's set, he surprised fans by bringing out Demi to sing a duet for their song, "Avalanche". 

"Amazing show last night for @1027KIISFM jingle ball! Thanks @ddlovato for coming and singing Avalanche with me!" Nick gave a shoutout on Twitter. 

Demi will be releasing a new album in 2015 and more news is circulating about the process. During a recent interview with Z107 Radio, she shared that she has been working on some new songs while she's been on tour.

"I have a few songs already; I have been writing a little bit on the road... here and there. But I've recorded some stuff and I think I'm really going to dive into it early next year and just step away from touring and everything for maybe a little bit."

Phil McIntyre, Lovato's manager, told Billboard last week that a new album is coming. "She's finishing up right now on the last leg of her touring for this year, and we finish it up with a couple of radio shows. Then the plan is for her to go back into the studio and start the next creative process. She's already done some songs, but certainly the majority of it will kick off next year."

Disney Music Group president Ken Bunt continues, "We're really excited. We've got a new album coming from her next year. We're not talking about release dates yet. And she's going to continue her world tour throughout next year."

Her latest album, the self-titled Demi that released in 2013 and has yielded the hit singles "Heart Attack" and "Neon Lights" and sold over 5 million tracks globally.