B.J. Penn

Jay Dee B.J. Penn III, born in 1978 in Kailua, Hawaii, is an American former professional mixed martial artist and fifth degree black belt in Brazilian jiu-jitsu. Before his fighting career he was the first non-Brazilian to win the World Jiu-Jitsu Championship at black belt level. In the Ultimate Fighting Championship he held both the lightweight and welterweight titles, one of eleven fighters in its history to win belts in more than one weight class, and he set the lightweight record for title defenses. He also fought in K-1, where he won the Rumble on the Rock lightweight championship, and in 2015 became the inaugural inductee into the modern-era wing of the UFC Hall of Fame.