Jay-Z throws big b-day bash for wife Beyonce

New York: Beyonce Knowles’ hubby Jay-Z threw an intimate party to celebrate his wife’s 29th birthday.

He took over nightlife impresario Scott Sartiano`s and Richie Akiva`s about-to-open Chelsea restau-rant, The Darby, and invited friends including Al icia Keys, Serena Wil liams, Kanye West and Sean ‘Diddy’ Combs to toast Beyonce . . . while DJ Cassidy took over the decks.

"Jay brought a six-layer cake out for B, they were really affectionate. Cassidy played Stevie Wonder`s ``Happy Birthday,``” the New York Post quoted a source as saying.

“The party went on until 6 a.m. Both Jay and B`s moms were there, but there was no sign of her father or her sister. Diddy was the last to leave. Jay filled the room with orchids," the source added.