Tony Hawk is a skateboarding sensation. At the 1999 ESPN X Games, he astonished viewers by performing a 900, a trick thought impossible to do. But astonishing people was nothing new for Hawk. Since taking up skateboarding at age nine, he’s almost singlehandedly revolutionized the sport. Whether dominating vert competitions, inventing new tricks, or providing a positive role model for young skaters, Hawk’s sheer athleticism and dedication have helped change the way skateboarding is viewed by the general public.