In what should clearly be considered a national holiday - nay, an international holiday! - Kim Kardashian turns 31 today.

This set of large breasts recently returned from Dubai, and ran straight into a tabloid deluge of divorce rumors. Are she and husband Kris Humphries on the outs? Is this simply planted fodder for her upcoming reality show? And did you even know Kim was married? The ceremony was kept very much on the down low.

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Hey Bristol Palin, we've found you a drinking partner.

On the same day that this formerly impregnated celebrity turns 21, Zac Efron also celebrates a birthday: the young stud is now 24. He's eagerly awaiting your best wishes.

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Bristol Palin, formerly America's favorite unwed teen mom, is now able to buy alcohol legally. Break out the wine coolers and Levi Johnston's tent tonight!!!!!

Just kidding. Seriously, happy 21st birthday, B!

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How time flies. Neil Patrick Harris and longtime partner David Burtka commemorated the one-year birthday of their adopted twin boy and girl this week.

Tweeted NPH yesterday: "Things I dig: our twins Gideon and Harper, who are one year old today! They are glorious. So proud to be their Papa."

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Josh Hutcherson turns 19 today. And it may be the final birthday this actor celebrates before he makes the leap to A-list status.

The young star, previously best known for briefly dating Vanessa Hudgens, has been cast as Peeta in The Hunger Games, a role that is sure to bring him a legion of rabid fans. Most of the female persuasion.

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Heidi Montag marked her 25th plastic surgery last week.

One-half of The Hills' gruesome twosome, Heidi marked the occasion with her husband Spencer Pratt and several friends, which apparently they have, in Las Vegas.

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Considering how long he's been around, it's surprising that Nick Jonas is just 19.

He's been in a wildly successful musical group. He's released a solo album. He's made the 'tweens swoon worldwide. He's dated both Miley Cyrus and Selena Gomez.

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