The Look: Cavalli is synonymous with glam and rock. Look to Cavalli for color, and lots of it. A genius when it comes to leather, his designs are wild, sexy, erotic, and fluid. His methods vary (leather, denim, silk, feathers) but the results are often unforgettable.

The Designer: Roberto Cavalli grew up in Florence, surrounded by art and fashion — which should come as no surprise to anyone familiar with his artistry. He showed his first collection in 1972 and has since grown into a fashion force that has spanned decades and continents. To date, Cavalli has done it all—from men, to women, to kids, to designs for the home.

Who Wears It: Kimora Lee Simmons, Beyonce Knowles, Jon Bon Jovi, Alicia Keyes, Bono, Jennifer Lopez, and Lenny Kravitz.