Brad Pitt -- American Girl

9/26/2010 9:45 AM PDT BY TMZ STAFF
Brad Pitt and his daughter Zahara enjoyed a quiet afternoon at a friend's birthday party ... that just happened to take place at an über-crowded outdoor mall in Los Angeles.

0926_brad_pitt_video_tmz
The party was for rocker Chris Cornell's daughter and was held at the popular American Girl store located in the Grove shopping center.

Next time they should try a less public place ... like Times Square.