Demi Lovato moved through the ranks of Disney, like many child stars have, before reaching massive stardom as a singer with some serious pipes. Performing is in her blood—the daughter of a former Dallas Cowboys cheerleader and an engineer/musician, she was born in Albuquerque and raised in Dallas and landed her first gig at the age of 10 on Barney & Friends. A childhood of talent contests, voice lessons, and casting calls landed her the first of several Disney gigs on the short TV series As the Bell Rings. It was her lead role in the Jonas Brothers' movie Camp Rock that got the worlds attention, though, and it wasn't long before she released her first album and toured with the Jo Bros full time. Since then, Demi has recorded several other albums, all of which have been on the Billboard Hot 100 list, has starred in several other shows and movies, and has been on the cover of countless magazines. A brief stint in rehab for depression and eating disorders halted her career briefly, but she came back even stronger, releasing another record-breaking album and selling out concerts across the country. Her 2015 single, "Cool for the Summer," is ironically hot, showing off Demi's beautiful body in several bikinis and body suits. All that culminated in a makeup-free, clothing-free photoshoot for Vanity Fair, where we got to see her amazing ass when she was perched on the side of a bathtub! One thing's for sure: We're hot for Demi.