Mike Tyson

Mike Tyson is a retired boxer who became the world's youngest heavyweight champion at age 20. He was the first heavyweight boxer to simultaneously hold the WBA, WBC and IBF titles. He successfully defended the world heavyweight championship nine times. After retiring from boxing in 2005, Tyson transitioned to entertainment, making a memorable cameo in 2009's The Hangover and putting on a one-man Broadway show, Mike Tyson: Undisputed Truth, in 2012. A year later, he formed Iron Mike Productions, a boxing promotions company. His next project is Tyson vs. Jaws: Rumble on the Reef, where he will face off against a shark as part of Discovery’s Shark Week.