What a difference a few years can make! Before they were fashionistas and fashionistos, most of these style-savvy celebs were just jeans and t-shirt kind of people. ET gives you our picks of the biggest makeovers in Hollywood, starting with Katie Holmes. Before she had her own fashion collection, was the face of Anne Taylor and had a fashion-forward daughter named Suri Cruise, Katie sported a girl next door style that greatly resembled her teenage character on "Dawson's Creek."