OK! Exclusive: Ashlee Steps Out for Pete's Birthday

Fall Out Boy's Pete Wentz had more than just his 29th birthday to celebrate on Thursday night — the rock star recently wed gal pal Ashlee Simpson and the pair recently confirmed OK!'s report that they will soon be expecting their first child together.

So to ring in Pete's last year before turning 30 — and maybe his last big party before he has to start changing diapers — nightlife maven Brent Bolthouse arranged for a private party for the couple in the exclusive upstairs VIP area at his hot Hollywood club Foxtail, where the newlyweds — Pete in an all-black tuxedo-ish getup, Ashlee in a sleeveless ruffled dress and ankle boots — arrived around 9:45pm in a stretch limo.

Even though there was Secret-Service-style security on-hand, with bouncers laser-scanning VIP wristbands and extra muscle men circulating around the club, that didn't stop the mom-and-pop-to-be from spending most of the party downstairs, away from their invite-only guests upstairs. "Pete and Ash worked the dining room," one clubgoer tells OK!. "They were walking from table to table, chatting and shaking hands." Maybe Pete is making a bid for the Vice Presidency?

Pete and his still-blushing bride eventually settled at a long table with eight friends who were eating and drinking the night away. "They didn't sip a drop of alcohol," one insider says about Pete and Ashlee. "Though I can't say the same for their guests!"

At the stroke of midnight, waiters brought out a birthday cake, with "Happy 29th Birthday Pete" written on it, to the table while the crowd sang "Happy Birthday." The pop-punker had a bit of trouble when he attempted to blow out his candles, requiring three attempts and accidentally dowsing the front of his suit jacket with icing.

Around 1am, it was time for the couple to call it a night, as they exited out the front door and into their awaiting limo, which took them back home.

By: Katie Rhames