Demi Lovato is looking pretty darn gorgeous on the August issue of Cosmopolitan. In this behind-the-scenes video, the X Factor judge talks about a lot important issues. When it comes to dating, she says, "Never try to make anyone jealous, don’t play games, if you like somebody, call them." You hear that? She doesn't have time for games and neither should you. She also talks about one of her favorite pastimes: the art of karaoke. "I sing my ass off to Aretha Franklin or Christina Aguilera songs or 'Lose Yourself' by Eminem."