Jessica Hosting Pussycat Dolls!

Sex-crazed men of the world rejoice: Jessica Simpson is getting back to her cleavage-baring ways.

Usmagazine.com has learned exclusively that Simpson will don her naughty-wear May 4 when she plays host to a special performance by the Pussycat Dolls at the scantily-clad group's themed lounge at PURE nightclub in Las Vegas. "This is a chance for her to be sexy again and back in the spotlight," a club source tells us. (Tramp vamp of 2006 Denise Richards played host to a similar Dolls performance last year.)

Simpson, 26, recently has been playing the role of loyal girlfriend to singer John Mayer, while ex-husband Nick Lachey is reportedly on the road to newlywedness with his mate Vanessa Minnillo.

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