Jessica Simpson and Ashlee Simpson, sisters and blond scions of the Simpson entertainment empire, are coming to Tampa's International Plaza Saturday for a presentation at Dillard's. Jessica, as you know, is a gagillionaire more thanks to her successful lines of clothes and shoes than her music career. Ashlee? Well, uh. She's coming along to be a nice sister. The event, which runs from 1 to 4 p.m. at the lower level entrance, is a promotional stop for Jessica's fashion lines for women and girls. If you buy more than $50 of Simpson merchandise (Simpsondise?) you can get a picture and an autograph from these two. To get you pumped for the Simpsons mall takeover, let's take a look at Jessica and Ashlee's best and worst fashion moments throughout their sisterly careers.