• Cameron Diaz will party like a princess today. John Mayer‘s new squeeze turns 35.
  • Serve up some cake! Andy Roddick will mark a quarter of a century on court at the U.S. Open. He meets Jose Acasuso in the second round. Here’s hoping it goes better than his 2005 first-round match. The No. 5 seed fell in straights to Gilles Muller on his 23rd birthday.
  • How’s The View from 34? Lisa Ling blows out 34 big ones!
  • Time to cop to your age. The Shield and Fantastic Four‘s Michael Chiklis still rocks at 44.
  • "Age Ain’t Nothing But a Number" — That’s why the late Aaliyah tacked three years onto her 15-year-old self in order to wed mentor R. Kelly in 1994. The marriage was annulled a few months later.