Halloween brought the Hollywood's A-list to Z-list out in droves, as well as golden girls from across the pond like Kate Moss, who was dressed up as Cat Woman this weekend in Los Angeles. It definitely beats her recent LAX pics. . .

We also caught a glimpse of Ashton Kutcher and Demi Moore carrying their nipple costumes in L.A. (where Ashton left Demi to fend for herself in the parking lot while she wandered around with her head covered), and Pink heading into Heidi Klum and Seal's bash at Oak in NYC.

Click on through for an extra-special Audrina Patridge surprise!