It's her first "official" birthday as a new mommy (last year she was pregnant with little Blue). And at 31 B looks happier than she's ever been. She's simply radiant.
B spent her pre-birthday weekend in Philly with her hubby, Jay, at his Made in America Music Festival. They were the picture of love and happiness.
Celebrate B's B'Day by watching her set the floor on fire, in some of her video classics and check out pix of her life changing year, below.
B Rocs Blue While Pregnant:
Photo Credits: Global Grind, Zimbio, MTV,YouTube & Beyonce.com