Trick or Treat! See Hollywood's Best Halloween Costumes (PHOTOS)
Amal Clooney (L) and Cindy Crawford attend Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Kim Kardashian (L) and Jonathan Cheban attend Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Chord Overstreet attends Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Kurt Iswarienko and Shannen Doherty attend Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
David Spade attends Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Derek Hough (L) and Hayley Erbert attend Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Richard Kind attends Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Michelle Trachtenberg attends Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Molly Sims attends Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Seth MacFarlane attends Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Jessica Lowndes attends Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Joanna Krupa attends Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Tyler Perry and Angie Beyince attend Ciroc Kicks Off Halloween with Lenny S. & Kelly Rowland's Costume Couture at Poppy on October 29, 2017 in Los Angeles, California.
Kelly Sawyer and Jessica Alba attend Ciroc Kicks Off Halloween with Lenny S. & Kelly Rowland's Costume Couture at Poppy on October 29, 2017 in Los Angeles, California.
Courtney Love and David Spade attend Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
Glen Powell attends Casamigos Halloween Party on October 27, 2017 in Los Angeles, California.
It was a spook-tacaular night! Hollywood's top celebs celebrated Halloween in their best costumes at George Clooney and Rande Gerber's Casamigos Halloween Party last Friday. On Sunday, across town, at Ciroc Kicks Off Halloween with Lenny S. & Kelly Rowland's Costume Couture at Poppy, even more A-listers stepped out in some boo-tiful costumes.
Halloween Flashback: 10 Spook-tacular TV Guide Magazine Covers
From 'Sabrina the Teenage Witch' to 'The Addams Family,' these are some of our favorite Halloween covers.
Click through the gallery above to see what your fav celebs wore.
