Check out some of the amazing Halloween Costumes on your favorite celebs.
Underneath this scary pumpkin mask is 50 Cent.
Demi Lovato nailed her Selena costume!
Floyd Mayweather gets down in his Sylvester The Cat costume.
Kim Kardashian nailed 3 costumes this year. First she was a 1970s version of Cher then check her out as Aaliyah below.
Kim teamed up with sister Kourtney Kardashian for this Madonna and Michael Jackson duet.
Trey Songz out snatching dreams in this Freddy Kruger costume.