Halloween in Hollywood Costume Contest – You Be the Judge! (Photos)

Matthew Morrison’s annual Halloween/Birthday party was the hot party on Halloween weekend one of two. The newlywed and his bride Renee Puente were ready to put the dance trophy from “Jack Rabbit Slims” in their trick-or-treat bags, even though the party was at Hyde.

Adam Lambert went dark and dramatic in black tie goth at a pre-Halloween bash in Beverly Hills.

Costume-less Derek Hough and Officer Chord Overstreet.

Aly & AJ as “Valley of the Dolls”.

Ashley Madekwe as “The Joker”.

Spiderman from the neck down. Joey Fatone from the beard up.

Colton Haynes as Princess Fiona from “Shrek”. 

J.C. Chasez as Hunter S. Thompson.

Will Sherrod (as a dog) and Chris Colfer as a cat (perhaps?).

Writer/Producer Toby Herman (Twitter and Instagram @TobyHerman27)  has worked on the Primetime Emmys and “Talking Dead”. She blogs at Snow White Trash. 

Halloween party season kicked off this weekend. First up, George Clooney’s ex Elisabetta Canalis as “Dorothy.”

Hilary Duff as a sexy tooth fairy (we think) and Mike Comrie.

Maria Menounos, the Army Ranger.

A very scary Michelle Trachtenberg.

Paris Hilton as “Minnie Mouse.”

Rande Gerber and Cindy Crawford as Gregg Allman and Cher.

Stephen Dorff as a native American chief.

Jon Warech (Twitter: @JonWarech, Instagram: @JonWarech) authors celebrity memoirs and is a freelance writer.

Wynter Mitchell (Instagram: @Wynter, Twitter: @KweenEverything ) is a digital strategist in L.A.

The annual Playboy Halloween party at “The Mansion” took place on Saturday night.

If you wear it every day, is it still a costume? Cooper Hefner, Hugh Hefner, and Cooper’s stepmom, Crystal Hefner.