The singer, who partnered with the hair care brand to create an "anthem ... Insider and more. OGX Demi Lovato wants you to look and feel your best this summer. The singer/songwriter has partnered ...

In an effort to help others, Demi Lovato has been candid ... With her wire-rimmed round glasses, long brown hair and gap-toothed grin, Lovato, 32, skipped, giggled, and danced beside a purple ...