Demi Lovato may be cool for the Summer, but she definitely knows how to still bring the heat. Whether she's dropping it like it's hot on stage during one of her fiery performances or showing off her curves in a racy bikini, there's no denying that Lovato's hotness factor is off the charts. Oh, and let's not forget about her sexy music videos - now those really get our hearts racing! From "Neon Lights" to "Confident," Lovato has so many steamy music videos that we've rounded up some of her hottest video moments just because. Turn up the AC, because it's about to get hot in here!