1 of 23
JESSICA ALBA & CASH WARREN
Did someone call for a superhero? The actress and her husband get into the Halloween spirit – she as a cat, he as Superman! – while trick-or-treating with their daughters in Pacific Palisades, Calif.
2 of 23
3 of 23
She's pure honey! The then-pregnant star flaunts her burgeoning baby bump in a bumblebee costume after a Halloween meal at New York's Darby restaurant.
4 of 23
No stranger to celebrating the holiday, the How I Met Your Mother star adds a sweet touch to her scarecrow costume while trick-or-treating with her little pumpkin, 2-year-old daughter Satyana, in Santa Monica, Calif.
5 of 23
Say cheese! The reality star is cute as can be thanks to her spot-on Minnie Mouse ensemble at the Bacardi- and Maroon 5-hosted Halloween bash at L.A.'s Hollywood Forever Cemetery.
6 of 23
The expectant mom shrouds her burgeoning belly in a simple black and purple witch's costume in Brentwood, Calif.
7 of 23
HARRISON FORD & CALISTA FLOCKHART
Rock and roll! Ford and Flockhart flaunt their love for '80s hair bands at a Halloween night bash in Brentwood, Calif.
8 of 23
The actress can't help but clown around while trick-or-treating with her boys Sasha, 4, and Kai, 2, in N.Y.C.
9 of 23
10 of 23
11 of 23
12 of 23
Sans Prince Charming, the pop star makes her fairy tale fantasy come true, stepping out as Cinderella for a Halloween party in Los Angeles on Oct. 29.
13 of 23
14 of 23
15 of 23
Hello, kitty! Frankel is picture purr-fect as the fictional feline during Heidi Klum's costume bash in Las Vegas.
16 of 23
Daytime TV now has not one, but two silver foxes – thanks to the CNN anchor, who pays homage to talk-show legend Phil Donahue during a taping of Anderson on Oct. 31 in New York.
17 of 23
Who needs a sugar fix? The Parks and Recreation star gets a taste of the sweet life, hitting Hudson's Halloween shindig as a Charms Blow Pop.
18 of 23
19 of 23
COCO & ICE-T
The Ice Loves Coco stars make a menacing pair – he as Silence of the Lambs' Hannibal Lector and she as a sexy little devil! – while cohosting the Halloween Player's Ball at LAX nightclub in Las Vegas on Oct. 29.
20 of 23
21 of 23
22 of 23
23 of 23
Hot Mama! Jennifer Garner Rocks Little Black Dress After Admitting She Hasn’t ‘Been on a Date’
Sacha Baron Cohen Offers to Pay Fines of Tourists Arrested for Wearing Borat Mankinis