Fergie: Happy Birthday, Sean Patterson!

Fergie and fellow songstress Natasha Bedingfield celebrate the 40th birthday of Wilhelmina President Sean Patterson held at NYC’s Dream Downtown on Friday (June 10).

JustJared.com has the exclusive details on the birthday bash, which was also a preview party for the hotels’ Ph-D Rooftop Lounge!

DJ Coleman spun tunes until 3AM for a star-studded guest list including Fergie‘s hottie husband Josh Duhamel, Estelle, Anderson Cooper (stealing kisses from Benjamin Maisani), Kellan Lutz, Shenae Grimes, Lance Bass, Lo Bosworth, DSquared2 designers Dean and Dan Caten, Bravo exec Andy Cohen, designer Brian Atwood, Helena Christensen, hairstylist Harry Josh, Ed Norton, and models Gabriel Aubry, Mark Vanderloo, and Tyson Ballou.

Highlights of the evening included Natasha singing a remixed version of her smash hit, “Unwritten,” Fergie singing “Happy Birthday” to Sean (and a few Black Eyed Peas tunes), and a little person Lady Gaga impersonator singing and dancing along to “Born This Way.” And if you didn’t notice, guests were asked to were a touch of neon to the party!

FYI: Fergie is wearing an Under.Ligne dress, a Ruthie Davis clutch, an Alexis Bittar cuff, and a pair of Brian Atwood shoes.

25+ pictures inside of Sean Patterson‘s birthday bash…