Another town, another store. While in New York City filming scenes for her new movie Blonde Ambition and hanging out with boyfriend John Mayer last week, Jessica Simpson found some time to visit celeb-fave boutique Kirna Zabete. Jessica’s visit didn’t faze any staffers — according to co-owner Beth Buccini, “any celebrity you can think of us has been in here, and lots of them come in everyday!” Though her purchases are confidential per store policy, we have a pretty good sense of what she might have snapped up. Co-owner Sarah Easily tells us that Lanvin ballet flats are flying off the shelves (Cameron Diaz and Naomi Watts are fans of the style), espcially in spring shades of gold, silver, red and navy. And their prediction for their next hot item? Kate Moss’s beloved Superfine jeans in skinny, high waist or flare styles in faded black and black wax (at $200-$300 a pair, they are among the cheapest items in the store). If you can’t visit their NYC store in person, check out their website or order via phone 212- 941-9656.