Jessica Simpson got dressed up to attend a friend's wedding in Pacific Palisades, CA, on Saturday. She covered her baby bump in a fitted black gown and arrived with fiancé Eric Johnson, sister Ashlee, and mom Tina. It was an especially exciting weekend for Jessica, who was also in the spotlight for her own celebration on Sunday. Jessica's baby shower was held yesterday at Hotel Bel-Air and had plenty of celebrity attendees including Jessica Alba, Ken Paves, and Chelsea Handler. The party feted Jessica and Eric's soon-to-be son, after she accidentally announced last month that they're expecting a boy. Jessica and Eric received a diaper cake wrapped in a blue bow from Jessica Alba, among other gifts, at their Tom Sawyer-themed event.