Next Slideshow: Steppin' Out: Jenni Rivera, Enrique Iglesias, Christina Milian and more
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School Party: Christina Aguilera leaves a Halloween party at her son's school in Brentwood, California on October 31.
Casual over Costume: Daisy Fuentes dresses casually for shopping at Bristol Farms in West Hollywood on October 31.
Lucky Lady: Alessandra Ambrosio was one of the lucky few to get a flight into JFK Airport in New York City on October 31.
On the Water: Enrique Iglesias and his girlfriend Anna Kournikova go for a boat ride in Miami on October 30.
Showing Some Skin: Christina Milian exposes her black bra when arriving at a birthday party at Mr. Chow in Beverly Hills on October 30.
LAX Lovato: Demi Lovato in a red beanie tries to cover her face when walking through LAX Airport in Los Angeles on October 29.
Bardem's Bond Girl: Naomie Harris and Javier Bardem attend the Skyfall photocall in Madrid on October 29.
On the Phone: Jessica Alba helps present the Microsoft Windows Phone 8 in San Francisco on October 29. Check out her cute daughter Honor Warren on the screen.
Kitty and Fishy: Best buds La La Vazquez Anthony and Kim Kardashian dress as a cat and mermaid at the Midori Green Halloween Party on October 27 in New York City.
Happy Girls: Cameron Diaz and the newly-engaged Jennifer Aniston have matching smiles at LACMA 2012 Art + Film Gala Honoring Ed Ruscha and Stanley Kubrick presented by Gucci on October 27 in Los Angeles.
Political Pals: Jada Pinkett Smith and Salma Hayek host a Victory for Obama Fundraiser at the Smith home in Los Angeles on October 25.
In Character: Zoe Saldana films Nina in Los Angeles on October 26. There has been much controversy over Zoe playing the part of the legendary jazz musician Nina Simone.
Xtina and her Knight: Christina Aguilera and her boyfriend Matt Rutler show off their Halloween costumes outside her home in Beverly Hills on October 27.