Celebrities in Halloween Costumes (PHOTOS)

Who’s afraid of Kim Kardashian? The reality maven’s Little Red Riding Hood costume was just one of the many hair-raisingly fabulous Halloween costumes spotted in Hollywood over the weekend.

From the hilarious (Glee’s Matthew Morrison as fitness buff Richard Simmons!) to the adorable (bumblebee Mason Disick!) our favorite stars went all-out for the spookiest holiday of the year.

Click through to the photo gallery and tell us in the comments – which star sported your favorite costume?