Celebrities, both with and without their children, were out in full force last night, showing off their fancy pants Halloween costumes to the world. Ahead, a roundup of the most notable costumes of the night.

Kelly Osbourne and Luke Worrell as Bacon and Eggs: Yes, I know this combo costume has been done to death, but these two are so cute that it totally works. They look warm and happy. And how fun is Kelly's bow?

[Image via Bauer-Griffin.]

The Stefani-Rossdale Crew Gwen and the boys, Zuma and Kingston, look adorable, but Gavin totally blows it by not bothering to wear a costume. Unless, of course, he's one of those people who says things like, "I'm Captain Holey Jeans," to explain his lack of Halloween gear. But still. Come on, dude.

[Image via Bauer-Griffin.]

Brooke Shields: Her daughters are clearly an angel (or a butterfly?) and a mermaid, but I'm not sure what Brooke is dressed as. Any guesses?

[Image via Bauer-Griffin.]

The Pitt-Jolie Crew: I'm not sure what Angelina is dressed as, but Brad is clearly dressed as DJ Lance Rock from Yo Gabba Gabba, which is beyond awesome.

[Image via RadarOnline.]

LaToya Jackson: I'll admit that I'm not quite sure what LaToya Jackson is supposed to be, but she did spend her Halloween night raising money for "AIDS Project LA" by posing with impersonators of her late brother, Michael, which is simultaneously sweet and creepy, though I guess the fact that it was all for a good cause moves it more into the sweet column.

[Image via Bauer-Griffin.]

Heidi Klum Heidi, who is somewhat known for her love of elaborate Halloween costumes, ended up going as "a black crow," as did her husband, Seal.

[Image via WENN.]

Christina Aguilera and her son, Max, wore matching skeleton suits. Very cute!

[Image via WENN.]

Christina Ricci and her boyfriend, Curtis Buchanan, did the mime thing, and quite well.

[Image via INFDaily.]

Paul Rudd and his son, Jack, apparently went as adorable for Halloween.

[Image via INFDaily.]

James Gandolfini, meanwhile, put on his best Homer Simpson disguise.

[Image via INFDaily.]

Ice-T and Coco Coco decided to go devilish...

[Image via Getty.]

Mariah Carey and Nick Cannon while Mariah and Nick decided to be angelic.

[Image via Getty.]

Gene Simmons And finally, Gene Simmons went as, well, Gene Simmons.

[Image via WENN]

Send an email to Hortense, the author of this post, at commenters@jezebel.com.