Celebrity Central / Top 25 Celebs
Published: Tuesday April 02, 2013 06:00 AM EDT
More from PEOPLE
See More News
76 of 275
Demi Lovato, who will return for the third season of The X Factor, takes the stage to perform her latest single, "Heart Attack," during a Monday visit to Jimmy Kimmel Live in L.A.
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.