Ashlee Simpson's Bachelorette Party!

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Ashlee Simpson, along with mom Tina and sister Jessica, celebrated her impending nuptials to Pete Wentz with an intimate bachelorette party on Thursday night, according to E!. The get-together was held at her parents’ home in Encino, Calif., where it was decorated with balloons, and tents were set up on the home's property to party in.

The party was attended by some of Ashlee's closest friends and family. Meanwhile, Pete had his own little celebration. In attendance was his future father-in-law Joe Simpson, who was in NYC earlier that day and told OK!, "I'm delighted for them."

The boys, along with some of Pete's friends, got some grub and beers at Mr. Chow in Beverly Hills, where Joe paid the bill. The couple will reportedly marry this Saturday in L.A.