Yang Hak Seon is a South Korean artistic gymnast who specializes in vault. He is the first South Korean gymnast to win an Olympic gold medal. Yang started his gymnastics career at the age of 9, following his brother’s footsteps.
He is famous in the gymnastics world for performing one of the five hardest vaults in the world, the "Yang Hak Seon", which is a front handspring on and into three twists off in a layout position. It was unveiled in the individual vault final at the 2011 World Championships. He shares the honor with only Kenzō Shirai and Hidenobu Yonekura, both of Japan, and Ri Se Gwang of North Korea for having at one skill in men’s vault to be named after them.
(Source: Wikipedia)