Ashlee Simpson Wentz started another public fight this weekend. Remember a few weeks back when she publicly dissed Pete’s ex, Michelle Trachtenberg? Well Ashlee got drunk and lit in to Pete himself this time!

More pictures of Pete and Ashlee after the drink…

Ashlee got really drunk during Pete’s show in Chicago this weekend.  It is beginning to appear to others that Ashlee may need a trip to rehab to fix her problems. According to Perez Hilton:

Multiple multiple sources reveal exclusively to PerezHilton.com that Simpson proceeded to get really REALLY drunk – and belligerent!

One of many eyewitnesses we spoke with tells us that Pete was in the DJ booth when Asslee “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.”

Ashlee, you need to get it together girl! You have that sweet baby Bronx to take care of. Pete isn’t so bad, just make him wash a little bit of eyeliner off!

Photos: Fame