LOS ANGELES, California (X17online) - Last night, Ashlee Simpson and Pete Wentz celebrated their upcoming nuptials with family members and several close friends at Teddy's lounge at the Roosevelt Hotel in Hollywood.

Prior to meeting up at the Roosevelt, Wentz dined at Mr. Chow with his father and soon to be father-in-law, Joe Simpson, while his fiancee was spotted with several friends, including Nicole Richie at Kiki de Montparnasse, a trendy lingerie store on Melrose Avenue. Around midnight, Simpson and her entourage (including older sister Jessica Simpson) met up with Wentz and his friends at Teddy's.

The wedding is set to take place on Saturday at Simpson's parents' house in Encino, California.