NEW YORK, NY - SEPTEMBER 03: Demi Lovato visits "Late Night With Jimmy Fallon" at Rockefeller Center on September 3, 2013 in New York City. (Photo by Jamie McCarthy/Getty Images) (2013 Getty Images)
HOLLYWOOD, CA - NOVEMBER 19: Actress Demi Lovato attends the premiere of Walt Disney Animation Studios' 'Frozen'at the El Capitan Theatre on November 19, 2013 in Hollywood, California. (Photo by Frazer Harrison/Getty Images) (2013 Getty Images)
Singer Demi Lovato attends the Teen Choice Awards 2013 at Gibson Amphitheatre on August 11, 2013 in Universal City, California. (2013 Getty Images)
BEVERLY HILLS, CA - DECEMBER 11: Singer/songwriter Demi Lovato arrives at The Hollywood Reporter's 22nd Annual Women In Entertainment Breakfast at Beverly Hills Hotel on December 11, 2013 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images) (2013 Getty Images)
WEST HOLLYWOOD, CA - OCTOBER 31: Singer/actress Demi Lovato attends her Halloween Party at the PhilyMack Management Building on October 31, 2013 in West Hollywood, California. (Photo by Christopher Polk/Getty Images for Philymack) (2013 Getty Images)
Singer Demi Lovato arrives at the 2012 MTV Video Music Awards at Staples Center on September 6, 2012 in Los Angeles, California. (Photo by Christopher Polk/Getty Images) (2012 Getty Images)
LOS ANGELES, CA - SEPTEMBER 06: Singer Demi Lovato poses in the press room during the 2012 MTV Video Music Awards at Staples Center on September 6, 2012 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images) (2012 Getty Images)
UNIVERSAL CITY, CA - JULY 22: Host Demi Lovato speaks onstage during the 2012 Teen Choice Awards at Gibson Amphitheatre on July 22, 2012 in Universal City, California. (Photo by Kevin Winter/Getty Images) (2012 Getty Images)
UNIVERSAL CITY, CA - JULY 22: Singer Demi Lovato speaks onstage during the 2012 Teen Choice Awards at Gibson Amphitheatre on July 22, 2012 in Universal City, California. (Photo by Kevin Winter/Getty Images) (2012 Getty Images)
UNIVERSAL CITY, CA - JULY 22: Singer/actress Demi Lovato arrives at the 2012 Teen Choice Awards at Gibson Amphitheatre on July 22, 2012 in Universal City, California. (Photo by Jason Merritt/Getty Images) (2012 Getty Images)
LOS ANGELES, CA - JULY 18: Singer Demi Lovato performs at the Greek Theatre on July 18, 2012 in Los Angeles, California. (Photo by Kevin Winter/Getty Images) (2012 Getty Images)
GREENSBORO, NC - JULY 08: Demi Lovato arrives at "The X Factor" Season 2 auditions at the Greensboro Coliseum on July 8, 2012 in Greensboro, North Carolina. (Photo by Jason Arthurs/Getty Images) (2012 Getty Images)
NEW YORK, NY - JULY 06: Singer Demi Lovato performs on ABC's "Good Morning America" at Rumsey Playfield, Central Park on July 6, 2012 in New York City. (Photo by Stephen Lovekin/Getty Images) (2012 Getty Images)
PROVIDENCE, RI - JUNE 27: Demi Lovato attends "The X Factor" Season 2 auditions at the Dunkin Donuts Center on June 27, 2012 in Providence, Rhode Island. (Photo by Paul Marotta/Getty Images) (2012 Getty Images)
OAKLAND, CA - JUNE 16: Demi Lovato attends Fox's "The X Factor" Season 2 Auditions at Oracle Arena on June 16, 2012 in Oakland, California. (Photo by Tim Mosenfelder/Getty Images) (2012 Getty Images)
The Tex-Mex singer/actress always looks flawless, whether she's sporting light or dark locks, jeans and a T-shirt or a jaw-dropping red carpet dress. (Grosby Group )
Nov. 10, 2011: Singer/actress Demi Lovato arrives at the 12th annual Latin GRAMMY Awards at the Mandalay Bay Resort & Casino in Las Vegas, Nev. (Getty)
Oct 12: Actress and singer Demi Lovato, left, and British singer-songwriter Taio Cruz announce nominations for the 2010 American Music Awards, Tuesday in Los Angeles. The show will be held at the Nokia Theatre in Los Angeles on Nov. 21. (AP)