Demi Lovato's Neon Lights Tour travels the US arena circuit in early 2014 as the Dallas-raised pop singer/actress backs her fourth studio album, "Demi," her top-charting album to date. "The X Factor" judge invited two alumni of the TV show -- Little Mix and Fifth Harmony-- to open the concerts along with "X Factor UK" contestant Cher Lloyd. Lovato has earned praise for her high-energy concerts and her soaring vocals, a combination that keeps young fans snapping up tickets. The Albuquerque, NM native has well over a decade of experience in show business, a run that began at age 10 on Barney and Friends. She starred in The Disney Channel movie Camp Rock as well as in The Disney Channel series Sonny with a Chance.