64. Karlie Kloss
Known For: Face of See by Chloé, Dolce & Gabbana, Hermès and Christian Dior
Kloss is 20 years old; she can't even legally drink in the U.S. yet and she's already considered one of the top 30 models of the 2000s by Vogue Paris. Her runway walk, often described as powerful, unique, and a "moody gait," is legendary in the fashion world.