Lauren Conrad and Mariah Carey kick off The Hills 3 Premiere and after-party in New York City on Monday.

Audrina Patridge and Whitney Port also stopped by the festivities to help promote.

Lauren is in Tufi Duek with shoes from BCBG.

WHAT DID YOU THINK of The Hills premiere tonight?

More pictures of Lauren, Audrina, Mariah and the rest of The Hills gang at the premiere and after-party… More Here! »

Lauren Conrad catches a red-eye flight from LAX airport in Los Angeles and arrives at JFK airport in New York City on Easter Sunday. While leaving LA, she was stalked by a little girl videotaping her!

The 22-year-old budding fashion designer is in town for the Season 3 (Part II!) premiere party of The Hills. Diva-licious Mariah Carey will perform live “Touch My Body” and “We Belong Together” @ 11PM at The Hills after-party show held at NYC’s Gotham Hall. Mariah’s new album, E=MC², drops in stores April 15.

Tune into all the drama that is The Hills tonight @ 10PM ET/PT on MTV.

25+ pictures inside of Lauren Conrad preparing for tonight’s premiere party… More Here! »

Lauren Conrad spends nearly five hours at a pal’s West L.A. home on Saturday afternoon.

The 22-year-old reality TV star then picked up some clothing from Bleu and then headed to Petco to buy a dog carrier for her pet pooch Chloe.

Seems like Lauren and Chloe will be doing a lot of flying together soon!

The Hills returns with new episodes TOMORROW, March 24.

For anyone older than 21, Lauren has listed seven reasons why you should give her show a try. Check out Newsweek.com.

More Here! »

Fitness buff Lauren Conrad goes for a morning job and then meets up with The Hills gals Audrina Patridge and Lauren Bosworth, aka Lo, in Los Angeles on Friday.

After dropping Audrina off at home, Lauren headed to the Equinox Gym on Sunset for a workout. Getting toned for summer!

Lauren, Lo and pal Whitney Port were recently in-studio with Ryan Seacrest to kick off the new season of The Hills. Listen to their appearance here.

Audrina, 22, was embarrassed by a topless photo scandal earlier this week but the experience has been a “lesson learned” for her.

Lauren Conrad and Lauren Bosworth, aka Lo, go for a morning run at Runyan Canyon in Los Angeles on Friday morning.

Earlier, Ms. Conrad was seen taking her pet pooch Chloe for a morning walk near her mini-mansion.

It’s rumored that Lauren will also be launching her own accessories line. Just last week, she showed her first collection at LA Fashion Week.

Yesterday, the 22-year-old reality TV star set the record straight, explaining that she “does not feel betrayed by [pals] Audrina [Patridge] or Brody [Jenner].”

20+ pictures inside of running mates Lauren & Lo… More Here! »

Lauren Conrad and costar/coworker Whitney Port work another scene for their unscripted reality MTV show The Hills in West Hollywood on Thursday.

Both Lauren, 22, and Whitney, 23, were both interns at Teen Vogue and together, moved onto public relations firm, People’s Revolution.

Says PR owner Kelly Cutrone about her company, “People’s Revolution is a full service Public Relations, Branding and Marketing Firm. Our main focus is Fashion & Lifestyle with a strong emphasis on celebrity branding. We have offices in NY & LA and work internationally in markets such as London, Milan & Paris. It seems like our clients use their product as a way to express a feeling or message beyond the product itself.”

And Lauren just updated her blog to clarify some rumors: “Hey! I just wanted to take a moment to clear something up. I recently did an interview [with Us Weekly] to talk about the show coming back on and what everyone had to look forward to. Unfortunately it was turned into yet another “poor me” story. The article itself is a nice one but it follows headlines that, in no way, represent my words or feelings. I do not feel betrayed by Audrina or Brody. I love them both and said nothing to contradict this. I understand that headlines sell magazines, but I value my friendships above magazine sales any day. On a more positive note, I got to see some of the first episode yesterday and it looks amazing. I’m sooooooo excited for everyone to see Paris. Best wishes and I hope everyone tunes in Monday.”

P.S. Lauren is toting around Rebecca Minkoff’s “Nikki” bag

10+ pictures inside of Lauren and Whitney working the People’s Revolution… More Here! »

Here is the video of The Hills star Lauren Conrad (wearing her own collection) on The Late Show with David Letterman.

The pair talk about Lauren getting ticks as a child. She said, “Our house was in Orange County. The back was a huge canyon, and I was a really big tomboy when I was little. I’d always go hiking and I had a rock collection. And I’d come back up and… you get ticks! They’re gross.”

Watch the video of Lauren on Letterman here.

10+ pictures inside of Lauren Conrad doing Letterman… More Here! »

Lauren Conrad (in her own design) makes an appearance Tuesday at the Late Show With David Letterman, which is taped at the Ed Sullivan Theater in New York City.

The 22-year-old reality TV star will talk up her hit MTV show, The Hills, which returns with new episodes on Monday, March 24.

Lauren has also been in town shooting a new ad campaign for Avon’s mark cosmetics.

Tune in to watch Lauren on Letterman tonight @ 11:30PM ET/PT on CBS.

Coat by Dolce and Gabbana.