Kim Kardashian, dressed as Posion Ivy hosts Midori Green Halloween Party in NYC.

Heidi Klum looks absolutely amazing in her costume!

Snooki celebrates Halloween with a spine-chilling bash at PURE Night Club.

Stevie Wonder and Bette Midler make a scary pair on the red carpet.

Simon Van Kempen is a very convincing Frankenstein.

Coco’s costume is…unique.

Jamie Lee Curtis looks like she is having fun as Little Red Riding Hood.

Gwen Stefani dressed up as a Princess for Halloween costume party at Beverly Wilshire Hotel in Beverly Hills, California.

Carmelo Anthony fits the part as a gangster perfectly!

Kate Upton is one hot bottle of Tabasco.