Demi Lovato Is Cool for the Summer in a Plunging One-Piece Swimsuit

Demi Lovato has long been a body-positive activist. Since becoming a champion of mental health awareness, and overcoming her own eating disorder and substance abuse issues with five years of sobriety now under her belt, the singer has become the unofficial celebrity spokesperson for loving yourself unapologetically. So naturally, when Demi got a couple of new swimsuits, she decided to show off the body-baring looks on Instagram, proving she's never not cool for the summer. In the first selfie sh...