Heidi Klum and Seal, dressed as black crows, arrive at their 10th Annual Halloween Party at Voyeur Nightclub in West Hollywood, California.

Heidi Klum in her Halloween costume, arrives at her 10th Annual Halloween Party.

Jessica Alba and husband Cash Warren, dressed as Dora and Diego, arrive at Heidi Klum’s Halloween party.

Heidi Klum and Jessica Alba pose for photos together at Heidi’s 10th Annual Halloween Party.

Paris Hilton and boyfriend Doug Reinhardt arrive at the Heidi Klum’s 10th Annual Halloween Party in West Hollywood, California.

Kelly Osbourne and her boyfriend Luke Worrall are bacon and eggs for Heidi Klum’s Halloween Party.

Rick Fox and Eliza Dushku, dressed as Bonnie and Clyde, pose on the red carpet at Heidi Klum’s 10th Annual Halloween Party.

Derek Hough arriving at Heidi Klum’s Halloween Party held at Voyeur nightclub in West Hollywood, CA.

Jessica Lowndes in a sexy Halloween costume, at Heidi Klum’s Halloween Party.

Maksim Chmerkovskiy, in a pirate costume, attends Heidi Klum’s 10th Annual Halloween Party.