Gwen Stefani's A-List 39th Birthday Party

Damn, everyone loves Harajuku girl lover, Gwen Stefani.

The O.C. native turned 39 in style, spending most of the night on the dancefloor with her hubby Gavin Rossdale.

The bash hosted by husband Gavin Rossdale and attended by about 100 guests, including her No Doubt bandmates, Ashton Kutcher and Demi Moore, newlyweds Ellen DeGeneres and Portia De Rossi, Nicole Richie and Joel Madden, Christina Aguilera, Duran Duran's John Taylor and Stefani's own Harajuku Girls.

Sounds like Gwen's party was the place to be! What an eclectic mix: Ellen DeGeneres, Nicole Richie, Christina Aguilera, Ashton Kutcher...

"The deejay played great music from the '80s and all her favorites â€" reggae, songs by The Specials, Fishbone, The Police," says a guest. "She danced all night and went from person to person just being the birthday girl."

Stefani, who gave birth to son Zuma on Aug. 21 (his brother Kingston is 2), wore a black party dress with her blonde hair down and wavy. "You'd never guess she'd had baby 6 weeks ago," says the guest. "She looks great."

Happy bday! :)

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