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John Rodney Mullen (born August 17, 1966) is an American professional skateboarder who practices freestyle skateboarding and street skateboarding. He is considered one of the most influential skaters in the history of the sport, being credited for inventing numerous tricks, including the flatground ollie, kickflip, heelflip, impossible, and 360-flip. As a result, he has been called the "Godfather of freestyle Skateboarding".