ASHLEE SIMPSON-WENTZ IN FIGHT WITH PETE WENTZ

Ashlee Simpson-Wentz had a public bust-up with her husband Pete Wentz during a night out in Chicago, illinois this weekend.

The pair was celebrating the first anniversary of Pete Wentz's Chicago bar Angels & Demons on Saturday (15Aug09) when the singer reportedly shouted at him to leave in front of partygoers.Ashlee Simpson-Wentz had been drinking and the pair continued to argue heavily when they left the venue, according to reports.A source tells celebrity blogger Perez Hilton that Ashlee Simpson-Wentz came up completely wasted and yells at him to leave. They fought, she told him he was horrible in front of a whole group of people and made him leave his own party early. So they make a scene and leave the bar.The report also alleges the star became irate when someone took a photo of her leaving the club and she demanded they delete the images.The stars security team then reportedly ushered them to a corner and got their driver to pick them up and leave.