We're pleased to announce that of our favorite celebrities celebrates a birthday today. The beautiful and oh-so-sweet Whitney Port of The Hills fame is now 23!

Always there to lend a sympathetic ear or to give sage advice to friends like Lauren Conrad, Whitney Port is a breath of fresh air in The Hills' catty world.

The Los Angeles native is also beautiful, in our opinion, and not in a way that looks like she's trying way too hard. Like, say, Heidi Montag, perhaps?

  Cute expressions like this one have made Whitney Port a Hills fan favorite.

We can't wait for Whitney, LC and Audrina Patridge to return for new episodes of The Hills March 24. If you haven't yet, check out the new trailer!

Also celebrating a birthday on this 5th of March? Eva Mendes. She gets naked a lot, goes to rehab and is supposedly an actress. Happy birthday, Eva!

Be sure to check out our calendar of celebrity birthdays to see when your favorite star's is coming up - or if any celebrities share yours!