Demi Lovato as Musical Guest on ‘Saturday Night Live’

Demi Lovato on SNL

Demi Lovato is the musical guest on tonight's episode of Saturday Night Live with Tracy Morgan as host. Lovato has been killing it lately with a hot new look, a sexy wardrobe makeover, and a whole new attitude, which has even landed her a modeling contract with agency Wilhelmina. This contract comes just on the heels of Lovato posing for a nude photo shoot with no makeup or retouching in Vanity Fair’s November issue. As far as her dating life goes, she is still in a relationship with longtime love, boyfriend Wilmer Valderrama, who you can check out on the TV show From Dusk till Dawn: The Series. According to Billboard, on tonight's episode of SNL, "Lovato will likely sing her summer anthem "Cool for the Summer" as well as her new album's title track, "Confident," which she debuted in a bar this week." For more information on Lovato, click through our gallery of her best pics from 2015. (Getty)