Kristin Cavallari: I'm in Love With Jay Cutler

Kristin Cavallari may be spending time in the Windy City, but her relationship with Chicago Bears quarterback Jay Cutler is far from gusty.

"I'm in love," she told PEOPLE Saturday night at Las Vegas's The Bank Nightclub while celebrating her 24th birthday.

Sadly, the object of her affection wasn't by her side. He has an excuse though – his team is in the NFL playoffs and played (and won) Sunday against the Seattle Seahawks.

"I want to be there," she said. "I'm bummed that I'm not there and he's not here."

Cutler, however, was there in spirit, and sent a large bouquet of pink flowers to her VIP table at the nightclub.

"Things are really good," Cavallari continued. "I'm just enjoying my personal life and taking a little time away from the public eye, which is why Chicago is great for me. My mom and that whole side of the family is there. And Jay is there. It's nice to be able to hang out with my mom, and, you know, I'm in love and it's been great."

Credit: People

Audrina Patridge's Bank Halloween Bash

Always a great choice when it comes to selecting a party host, Audrina Patridge was looking fabulous at The Bank Nightclub at the Bellagio in Las Vegas, Nevada on Saturday night (October 30).

Joined at the Halloween weekend soiree by boyfriend Corey Bohan, the former "Hills" hottie donned a sexy little black, white and red ensemble while visiting the deejay booth in between time with her man on the dancefloor.

Tweeting to her many fans and followers ahead of the gig, Miss Patridge wrote, "Vegas time!!!.... Whose coming to the bank tonight at bellagio???:) excited to see everyone's costume"

Also wishing everyone well during the fun-filled holiday, Audrina previously tweeted, "Ill post photos up on my website monday from nyc and this weekend:)!! Hope everyone has a safe and happy halloween xoxo"

Credit: Celebrity Gossip

Avril Lavigne Totally Loves Brody Jenner

Brody Jenner and Avril Lavigne have only been dating since February but Avril seems to be totally taken by the reality TV star.

She grabbed the microphone at the Bank nightclub in Las Vegas on Sunday and told the Hills star that she was in love!

A source told the New York Post: "Lavigne and Jenner were having a blast. They were taking shots with friends including Olympic snowboarder Shaun White, grabbing the microphone, shouting, 'Jager shots' and making the crowd go wild."

The 25-year-old pop star even shouted, "I love you, Brody!" into the microphone.

Although Avril and Brody are yet to confirm they're officially an item, they looked like a loved-up couple as they sang the Black Eyed Peas' hit single I Gotta Feeling together.

As another sign of their increasing devotion, Avril and Brody recently had matching lighting bolt tattoos (click here for pictures).

A source said: "They showed up to the opening of Mario Barth King Ink and requested the same tats. They were really excited about it. They held hands openly and were kissing in a corner. Brody didn't leave Avril's side all night."

Credit: OK! Magazine

Lauren Conrad: Inside The Party

Treating herself to a fun-filled evening, Lauren Conrad was spotted out at the Bank nightclub at the Bellagio Hotel and Casino in Las Vegas on Friday night (January 22).

The former “Hills” babe looked to be having a marvelous time as she enjoyed her fair share of drinks while chatting with friends.

LC was celebrating two special occasions all night- her upcoming 24th birthday (February 1) as well as the launch of her second novel “Sweet Little Lies.”

Lauren tweeted, “Haaaaaaaaaaaaappy Friday! Heading to a couple fittings then off to The Vegas with @jillyhendrix, Nate and KP! Yaaay!”

Credit: Celebrity Gossip

Lauren Conrad Hosts “Sweet Little Lies” Party

Getting all prettied up for a night in Sin City, Lauren Conrad hosted a party at The Bank Nightclub at the Bellagio in Las Vegas, Nevada on Friday (January 22).

Decked out in a bright red frock, the former “Hills” hottie was celebrating the upcoming release of her second book, Sweet Little Lies.

Tweeting about her plans prior to heading off to Vegas, LC wrote to her fans and followers, “Haaaaaaaaaaaaappy Friday! Heading to a couple fittings then off to The Vegas with @jillyhendrix, Nate and KP! Yaaay!”

Also seeming to make the most of the wet west coast weather, Miss Conrad tweeted, “It’s hailing! Prettiest rainbow stretched across the hills...”

Credit: Celebrity Gossip

Holly Montag: Birthday at The Bank

She’s no stranger to a swanky evening out, and Saturday night (October 10) Holly Montag celebrated her birthday Sin City style.

The Hills babe was joined by her bff Stacie Hall as she descended on The Bank Nightclub, located at the Bellagio Hotel and Casino in Las Vegas.

And Holly was dressed to impress as she prepared to party, sporting a sexy black dress teamed with a pair of strappy black heels.

Coming up tomorrow night (Tuesday, October 13) be sure to catch Holly and the rest of the gang on a brand new episode of The Hills at 10pm EST on MTV.

Credit: Celebrity Gossip