Demi Lovato [1] took a page out of Kim Kardashian's playbook [2] and paid tribute to one of her favorite musicians for Halloween [3] this year. The 25-year-old singer posted pictures of herself dressed up as the late Selena Quintanilla-Perez [4] on Snapchat, and our hearts can't take it. Demi wore a spot-on replica of Selena's signature purple sequined jumpsuit [5] and a long black wig with bangs to bring her costume to life. Demi also shared photos of herself posing with her friends, who dressed up as a unicorn and Batman. See more of Demi's gorgeous Selena costume ahead.