The Best (and ~Spookiest~) Celebrity Halloween Costumes of 2015

Miley posts a photo to Instagram on October 31, 2015.

Sarah Stage shared this photo on Instagram on October 30, 2015.

Jessica Alba shares a photo to Instagram on October 30, 2015.

Kim Kardashian shares this throwback pic to Instagram on October 31, 2015.

Kourtney Kardashian shares this throwback pic to Instagram on October 31, 2015.

Nicki Minaj attends a party at 1 OAK Nightclub on October 31, 2015 in Las Vegas, Nevada.

Channing Tatum and Jenna Dewan-Tatum dressed as the Cat in the Hat at the Casamigos Tequila halloween party in Los Angeles, California on October 30, 2015.

Nick Jonas attends the Maxim Halloween party on October 24, 2015.

Karrueche Tran attends the Maxim Halloween party on October 24, 2015.

AnnaLynne McCord as a vampire at Carlton's Halloween party on October 24, 2015.

Lily Collins at Ciara's costume-themed birthday on October 25, 2015.

Kourtney Kardashian posted this photo on Instagram on October 25, 2015.

Beyoncé at Ciara's costume-themed birthday on October 25, 2015.