Kristin Cavallari was leaving the S Bar, on her way to the Cinaspace Club. And she was dressed to impress, with a black dress underneath a leather jacket and a pari of Yves Saint-Laurent shoes (they retail at $640!) and snagged black tights.

Kristin Cavallari Leaving A Hollywood Nightclub At Dawn

The former Laguna Beach star marked the rite of passage at Luxor’s LAX nightclub, where she danced to Soulja Boy and hung with friends.

“My first official drink was Grey Goose and soda,” she said. “It’s really exciting. I can go to the clubs and not worry about anything.”

She was joined by fellow Laguna Beach alum Alex Murrel, and spent the night chatting up former flame Matt Leinart, who coincidentally was seated at an adjacent table in the VIP section.

Following her dinner at Company American Bistro, Cavallari’s highlight was easily the sparkling birthday cake that was brought out for her.

Saturday night capped the weekend-long celebration for the onetime Lauren Conrad rival. As soon as the clock struck midnight Saturday, the newly single Cavallari (she recently broke up with Nick Zano) headed to Pure Nightclub to take in the sights.

And what about the guys? Cavallari wouldn’t reveal details on her love life, only saying that she is dating “and having fun.”

Kristin Cavallari celebrates her 21st birthday at LAX nightclub in Las Vegas

[Source]

Here’s Kristin Cavallari in a skimpy bikini-revealing outfit on the set of her new movie, Green Flash

Kristin Cavallari Breasts in ‘Green Flash’

Pictures source: Tuna

she looks great.. love her hair!

Kristin Cavallari was seen grocery shopping over the weekend, getting an entire cart full of groceries.

Pictures source: The Skinny Website

Laguna Beach babe and Kristin Cavallari and singer/songwriter Teddy Geiger reunite at the phoot call ahead of tomorrow’s MTV Australia Video Music Awards 2007, at The Hilton’s Zeta Bar on Saturday in Sydney.

Last year, Kristin starred in Teddy’s music video “For You I Will (Confidence).”

More pictures inside of Kristin…

Shady couple Kristin Cavallari and Nick Zano arrive hand-in-hand at Sydney airport wearing matching aviator shades on Thursday in Australia.

The Laguna Beach babe and What I Like About You hunk are expected to attend the MTV Video Music Awards this weekend.

The Australia VMAs will be getting Fergalicious this year with the Dutchess herself hosting this year’s awards ceremony on Sunday. Bring on the glamorous ghetto-funk, Fergie!

Kristin’s web series, RealityLASIK, kicks off on May 1, chronicling her journey through lasik eye surgery.

Sizzling hot soul mates Kristin Cavallari and Nick Zano attend Hollywood Life Magazine’s Young Hollywood Awards at the Music Box at the Fonda on Sunday night in Los Angeles, Calif.

Before hopping into their Range Rover, the loved up couple were spotted getting their grocery shopping on at Bristol Farms store in Beverly Hills on Saturday.

Zano, 28, is best known for his role as uber-hunk Vince from the WB sitcom What I Like About You (2002-2006). Cavallari, 20, is best known for playing “herself” on MTV reality show Laguna Beach (2004-2005).

More pictures inside of Kristin and Nick…

Sizzling hot soul mates Kristin Cavallari and Nick Zano attend Hollywood Life Magazine’s Young Hollywood Awards at the Music Box at the Fonda on Sunday night in Los Angeles, Calif.

Before hopping into their Range Rover, the loved up couple were spotted getting their grocery shopping on at Bristol Farms store in Beverly Hills on Saturday.

Zano, 28, is best known for his role as uber-hunk Vince from the WB sitcom What I Like About You (2002-2006). Cavallari, 20, is best known for playing “herself” on MTV reality show Laguna Beach (2004-2005).

More pictures inside of Kristin and Nick…