Christina Aguilera and Demi Lovato delivered a high-energy performance of their new duet, "Fall in Line," at Sunday's Billboard Music Awards in Las Vegas Dave Quinn is a Senior Editor for PEOPLE.

stunt awards Yesterday at 10:21 p.m. overnights Yesterday at 10:15 p.m. Top Chef Recap: Around the World in 150 Bites When all you want to do is make a knockout dish, having to become a conveyor ...

and two Latin American Music Awards. Demi Lovato Says Goodbye to Her Nose Ring with Hilariously Over-the-Top Video in Its Honor Demi Lovato Recreates Her Iconic Camp Rock ‘Disney Knees’ at ...

Demi Lovato is set to perform at Caron Treatment Centers’ NY Gala on April 21. Dr. Angelina Lipman, Monte Lipman and Jennifer ...