FILE - In this April 3, 2012 file photo, U.S. singer Demi Lovato poses for photographs before she meets fans and signs copies of her new album, "Unbroken," at a central London music store. Pop star ... more 
FILE - In this April 3, 2012 file photo, U.S. singer Demi Lovato poses for photographs before she meets fans and signs copies of her new album, "Unbroken," at a central London music store. Pop star Lovato, also a new judge on “The X Factor," is set to host the 14th annual Teen Choice Awards, alongside “Glee” co-star Kevin McHale, on Sunday, July 22, 2012. (AP Photo/Joel Ryan, File) less 
1 / 27
Associated Press | Photo By Joel Ryan, File
Sun, Jul 22, 2012 3:54 PM EDT