Demi Lovato shared a sexy snap of herself lounging poolside in a thong bikini on Thursday. The singer, who is currently in Rio as part of her Neon Lights tour, posted the steamy photo to Instagram and alluded to her teeny-tiny bikini bottoms, saying, "When in Brazil . . . " Demi is soaking up the sun between shows on the South American leg of her tour, which began last week. The songstress and former X Factor judge also covers the Summer issue of Cosmopolitan For Latinas and opened up about her troubled past and her desire to inspire young girls in the accompanying interview: "When I was younger, I needed someone in the spotlight to idolize, who stood for positivity and light and happiness and wanted to change the world. And because I didn't have that, I realized I want to do that, if only for my 12-year-old little sister."

Source: Instagram user ddlovato