Leighton Meester dressed up as Gossip Girl character Blair Waldorf for Halloween.  Of course, it's because Meester spent Monday hard at work on the set of her CW show.

With fishnet tights, a pop of yellow purse, and a Jackie O-worthy hat, Meester looked a spot-on Blair as she filmed scenes with Penn Badgley (dressed as a very convincing Dan Humphrey).



Photos by IGNAT

Christina Aguilera and ex-husband Jordan Bratman didn't let a little thing like a very public divorce get in the way of making sure son Max had a happy Halloween.

Yesterday, X-Tina and Jordan put on a united front to take Max (dressed as a dashing Knight of the Round Table) out for some holiday fun.  Too bad Christina and Jordan didn't go the way of Naomi and Liev and join their little one in costume!



Photos by RCF

Like we could ever forget Mickey Rourke!  (We mean, c'mon!  How could we???)

But now, we have backup.  Just.  In.  Case.

Yesterday, the Rourke was immortalized in cement during a hand and footprint ceremony outside Grauman's Chinese Theatre in Hollywoodland.  On hand to witness his honor?  Girlfriend Anastassija Makarenko and a very "mature GQ-looking" Eric Roberts.

Is that a bullet Rourke pressed in beside his signature?  Rourke on, Rourke.  Rourke on...



Photos by AXELLE

We love it when celebs go all out for Halloween.  Naomi Watts and beau Liev Shreiber did!  Sure, they may not have gone Heidi Klum all out, but they certainly didn't Pattinson half-*ss it!

Yesterday, Naomi pulled on a bright clown outfit to take sons Sammy and Alexander (Sacha) to the Village Halloween Parade.  The cold clown (we doubt that fleece was part of the costume) eventually met up with beau Liev, removed her foam nose for a quick kiss, then continued on through the swarm of revelers.



Photos by STEVE SANDS/IGNAT

Yes, please!

Beauty Olivia Wilde was back in New York over the weekend, once again lending her gorgeous face to cosmetics brand Revlon.  Saturday night's commercial shoot involved Wilde strutting her stuff through a steam-filled street in the city's Meatpacking District. 

This is one of those occasions where we really do want so badly to believe buying Revlon products will make us look as sexy as Olivia!  Disregard her superior genetics!  We just need the right mascara and-- BOOM! --near-physical perfection.

A blogger can dream...



EXCLUSIVE photos by STEVE SANDS

Spec-tacular!

Heidi Klum looked like she'd been turned inside out on Saturday night for her 12th Annual Halloween Party.

This year, Heidi went as a skinned corpse.  And it was equal parts appalling and awesome.  Heidi's red carpet arrival a TAO Nightclub (in the Venetian Hotel & Casino in Las Vegas) entailed her being rolled in on a gurney by a blood-splattered orderly.

You tell us.  More or less grotesque than AnnaLynne's clavicle extravaganza?



Photos from EROTEME