Sexy Celebrity Halloween Costumes Slideshow

On Halloween, many of our favorite stars take the opportunity to show off their sexier side with their costumes. The Kardashians always bring a little naughty flair to the holiday, and Heidi Klum loves to show off her supermodel frame in creative getups. Mariah Carey never fails to let her saucy side shine, and Lauren Conrad brings some restrained hotness to the red carpets as well. Click through to see our picks for the sexiest costumes from years past!