Kourtney Kardashian and Suri Cruise just turned a combined 37!

The reality TV star and daughter of TomKat both turned another year older and wiser on April 18 (sorry for the belated wishes, ladies). Despite their age gap, Kourtney (32) and Suri (5) have something in common - being famous for no reason!

Posted in: Suri Cruise

OMG. It's Kristen Stewart's birthday today - her 21st no less!

The Los Angeles native racked up an impressive number of film and TV credits before 2008, but it was then that Twilight launched her into mega-stardom.

Posted in: Kristen Stewart

Jamie Lynn Spears, who's been more or less of the spotlight since getting pregnant at age 16, turns 20 today. She marked the occasion by joining Twitter!

The sister of Britney Spears welcomed Maddie Briann in June 2008. The father is her former boyfriend/fiance Casey Aldridge. Who knows if they're still on.

Posted in: Celebrity Babies

Susan Boyle has reached many milestones in her professional life. This artist has ruled the music charts almost since the day we met her on Britain's Got Talent.

But today marks a major accomplishment in the personal life of the Scottish singer: she turns 50!

Posted in: Susan Boyle

Kate Gosselin has scarcely been in the news lately, but don't worry: this attention-starved mother of six isn't acting like a responsible parent and staying out of the spotlight or anything.

She's simply filming the new season of her reality show. It premieres on April 4.

Posted in: Kate Gosselin

The most successful, buzzed-about singer in all of music turns 25 today. The only question: how will Lady Gaga celebrate?

This star has been among the leading voices across the world, urging to donate money to victims of the Japanese earthquake. She's also an outspoken supporter of gay rights and... a country artist? Occasionally!

Posted in: Lady Gaga

Okay, so it's no Facebook. But Twitter is a fairly successful social media phenomenon in its own right. One that celebrates its fifth birthday this week!

In honor of this momentous occasions, we urge you to do two things:

Posted in: Twitter