Happy birthday to former MTV personality Kristin Cavallari, who is 29 years old today! What’s she doing to celebrate? E! News, Kristin’s preferred online gossip site, has the exclusive...

[Kristin] turns 29 today, and as a source tells E! News exclusively, she’ll be celebrating with her family and friends all day long.

That’s not all:

Kristin plans to have a special B-Day lunch with her mom, a source tells E! News, and is having a small, intimate dinner with Jay and a few close friends tonight.

Also:

A source tells E! News Kristin is in happy spirits today, which as the birthday girl, she certainly should be.

Damn, this source knows a lot. And they’ve already proven themselves to be reliable—Kristin confirmed the birthday lunch plan with a new Instagram post.

She must speak to her agent often.

This has been 500 Days of Kristin.

[Photo via Getty]