PHOTOS: Cindy Crawford, Kelly Brook celebrate Halloween

We bring you snapshots from the Playboy Mansion and the Casamigos Halloween parties.

Dirty, hot, naughty but altogether a lot of fun! Halloween parties are a paparazzi's dream come true. We bring you some pictures from two popular Halloween parties. Keep clicking!

We start out with the Playboy Mansion's Halloween party where Playmate Amanda Cerny (L) and Playmate of the Year Raquel Pomplun attended the annual Halloween bash in Holmby Hills, California.

A general view of the atmosphere at Playboy Mansion's annual Halloween bash.

Next up we have Playmate Michelle McLaughlin at Playboy Mansion's annual Halloween bash.

We move to yet another high-profile Halloween party in California held at the home of Mike Meldman which was attended, among other people, by Alessandra Ambrosio.

Actress Kelly Brook attends the Casamigos Halloween Party at the home of Mike Meldman in Beverly Hills, California.

Cindy Crawford (L) was barely recognisable in her Guns N Roses star Slash's avatar as she walked in with her husband Rande Gerber at Mike Meldman's home.

Also seen at the party was TV personality Ryan Seacrest.

Actor Aziz Ansari seemed to have missed the part about attending the party in costume... unless he thought those glasses could pass off.

Two heads were better than one it seemed for writer/producer Larry David (L) as he turned up in this most interesting costume at the Casamigos Halloween Party.

We wrap up with singer/actress Hilary Duff (L) who donned a mouse costume while her husband and hockey player Mike Comrie played a doctor at the Casamigos Halloween Party.