Celebs do Halloween early with epic costumes

When it comes to Halloween, celebs go all out with impressive -- and likely expensive -- costumes. A bunch of them have gotten into the spirit early, dressing up over the weekend for parties and red carpets.

Here's who's worn what so far:

Demi Lovato as a Trap Queen

John Stamos and Josh Peck as devils 

Christina Milian as a leopard

Chrissy Teigen as Guy Fieri

Beyonce as Storm

Ciara and Russell Wilson as Catwoman and Batman

Kourtney Kardashian as Wonder Woman

Colton Haynes as Ursula

Nick Jonas as the Hamburglar

Val and Maksim Chmerkovskiy as .... we don't know