Today Brad Pitt turns 47, Katie Holmes turns 32, and Christina Aguilera turns the big 3-0. Happy birthday, guys!

Ok, Brad Pitt, Katie Holmes AND Christina Aguilera all share a December 18th birthday? Too weird.

While Katie celebrated hers with her daughter, Xtina spent her 27th with hubby Jordan and her ever-growin' baby belly!

Jordan took his mama-to-be out to dinner at Houston's. Seriously, Houston's? I mean, I like Houston's as much as the Aguileras, but with all her hit albums, doncha think they could have afforded something a little nicer?

We caught teen heartthrob Zac Efron heading back to his car after making a pickup at the Aroma Cafe yesterday. Since when does Zac ever need a pick-me-up? Just look at those photos - the kid looks like he strolled in from a photo shoot!

And Happy Birthday to Zac who turns 20 today! He's no longer a teenager, but still not of legal drinking age -- guess he'll be celebrating tonight with another capuccino!

Everyone and their mother were on Sunset Blvd.!

Anne Hathaway joined Rumer Willis, Jim Carrey & Jenny McCarthy, Rachel Bilson, Jamie Foxx and Jimmy Kimmel at the Sunset Towers while Brandy, Ray J, Lil Kim, Justin Long and Lance Bass attended a party at the SkyBar!

To say directorial bad boy Brett Ratner was on his best behavior last night would be an understatement - not only did he leave alone (don't worry, Brett - we'll make sure to let your girlfriend know!), but he took the time to wish Lindsay Lohan a happy birthday before he took off! But don't go thinking Brett's gone goody-two-shoes - when the paps jokingly followed up on his promise to pay Paris Hilton twenty million dollars to star in his next blockbuster, the Rush Hour director couldn't help but play along!

Okay, so Eva's not 21 anymore - still, with all the vivacity she displayed bouncing out of Hyde following her birthday party last night, it's a forgivable mistake to make! Of course, given that we caught Jamie Foxx slipping into the club via the back door a few minutes before the birthday girl arrived, Eva's high spirits may have something to do with something other than the presents she received - the pair may just be friends, but since when does an appearance from Jamie Foxx fail to thrill the ladies?

In any case - feliz cumpleanos, Eva!

Who wants to dance with a pimp? Well, get out your wallets - Kevin Federline's asking for some serious bank for the privilege of covering his 29th birthday bash! The New York Post is reporting that the former Mr. Britney Spears is setting an asking price of $25,000 for the rights to cover his upcoming birthday party at Eleven in West Hollywood. Shockingly, a price tag which covers exclusive rights to coverage inside the club, the imprinting of the publication's logo on the red carpet, and (presumably) all the copies of Playing With Fire the reporters can carry. Believe it or not, even this lavish price tag doesn't cover all the amenities - according to the Post, the lucky licensee won't even get an exclusive interview with the birthday boy!

When you're an heiress, one birthday party just won't do! Paris held a second birthday bash for herself at her house Saturday night. Her parents, Rick and Kathy (whose reaction to one of Paris’ biggest fans was quite amusing) were there for their daughter's second celebration, as was sister Nicky with boyfriend David Katzenberg, Kendra from The Girls Next Door (who said that Bridget and Holly were at home asleep), Brandon Davis, DJ Paul (from Three Six Mafia), a very drunk Wee Man from Jackass, Brett Ratner and Elliot Mintz also made an appearance at the big bash.