In the past four years Hawk has become a one-man marketing phenomenon. Sales of Hawk-branded items generate more than $250 million annually, and Hawk himself has earned an estimated $10 million in each of the last two years. He is represented by the William Morris Agency and has a personal publicist. His sister Pat, a onetime backup singer for John Denver and Michael Bolton, runs Tony Hawk Inc., which employs 75 people. The Tony Hawk's Pro Skater video game series has amassed about $450 million in sales since its introduction in the fall of 1999.