Official Playboy New Year's Eve celebration at Hilton | Photos

With high spirits and low necklines, over 4,000 party-goers at Playboy's official New Year's Eve celebration at the Hilton Chicago kept the bubbly flowing and the dance floor packed. Attendees mingled with eight Playboy Playmates to the sounds of house, hip-hop and dance music provided by Amsterdam's Eva Simons, "Cyclone" and "Vegas Nights" performer Baby Bash and aspiring rapper (and youngest son of Tom Hanks) Chet Haze. At midnight, B96's DJ Flipside from "Flipside at 5" and Mixmaster Mixin Marc spun beats while Stylz and Roman rang in the new year with a video countdown and confetti explosion.

Tickets for the bash, which offered four hours of open bar, hors d'oeuvres, a buffet and a midnight champagne toast started at $155, with VIP lounge access to the Playmates and casino gaming for $215 and premium bottle service ranging from $1,000 to $3,000 for serious ballers and/or the fiscally foolish.