When in Brazil, why not do as the locals do and embrace some butt floss?
That was Demi Lovato's thinking when she got her tan on while wearing thong bikini bottoms. The 21-year-old pop star is currently on the South American leg of her Neon Lights tour, playing eight shows in Brazil alone. The former "X-Factor" mentor posted a photo of herself soaking up the rays to her Instagram account on May 1. "When in Brazil....." she captioned the photo.