Happy Halloween! These celebs did it BIG! Check out a gallery of our favorite celebrity Halloween costumes inside. 

Head inside if you still need a costume idea for this year's spooky festivities.

North and Penelope are quite the dynamic little duo, and we are here for all of it.

Dressing up like the exuberantly tacky chef may not be as sexy as Beyonce as Storm or Ciara as Catwoman, but Chrissy still won with this one.

In an interview with TODAY, Matt Lauer asked the I Am Cait star for her thoughts on the costumes, which have already appeared online.