Helping their baby brother ring in another year, the Kardashian sisters took to Las Vegas, Nevada for Robert Kardashian's celebratory bash at Jet nightclub on Friday (March 18).

With Kim Kardashian and Khloe Kardashian both on-hand, the E! reality dolls excitedly joined up with Rob and boxer Floyd Mayweather Jr at the Sin City hotspot inside the Mirage Hotel and Casino.

Credit: Celebrity Gossip

Whitney Port and her boyfriend, The Buried Life's Ben Nemtin, arrived at the Rolling Stone Hot Party at the Jet Nightclub at the Mirage Hotel & Casino October 1, 2010 in Las Vegas, Nevada. Also pictured, Jersey Shore's Sammi Giancola.

Credit: Zimbio

Taking a break from her usual reality TV gig, Lauren ‘Lo’ Bosworth was spotted hosting the Verizon Wireless Samsung Rogue launch party last night (October 26).

The “Hills” babe looked lovely as she posed for the paparazzi outside Jet nightclub at the Mirage Hotel and Casino in Las Vegas.

In related news, while Lo and Lauren Conrad are as tight as ever, Miss Bosworth won’t be starring in the film adaptation of LC’s hit book “L.A. Candy.”

A source told press that what started as a joke on the red carpet was quickly put to rest as Miss Conrad is teaming up with writers and producers, and it looks like they’re going for more serious actors with film experience.

Credit: Celebrity Gossip