Inside Beyoncé's Celeb-Studded Birthday Dance Party
Johns PkI/Splash News Online
09/10/2010 AT 02:00 PM EDT
Beyoncé celebrated her 29th birthday with a dance party at The Darby in N.Y.C. alongside famous pals like Diddy, an expectant Alicia Keys and Kanye West. Hubby Jay-Z organized the private bash, while DJ Cassidy spun tunes, including Stevie Wonder's version of "Happy Birthday," which was played shortly before cake was served. There was also a jazz band, and a source says the party was "perfect" and "very intimate."