Mike Tyson is the former undisputed heavyweight champion of the world, and the first boxer ever to hold the three biggest belts in prizefighting the WBC, WBA, and IBF world heavyweight titles simultaneously.

Tyson's enduring appeal has launched him into a career in entertainment: he was a standout in the blockbuster films The Hangover and The Hangover Part II, and recently he has earned tremendous acclaim for his one-man show Mike Tyson: Undisputed Truth.

Tyson has launched a clothing company, Roots of Fight, and Tyrrhanic Productions, which currently has several film projects in development. In 2011 he was inducted into the Boxing Hall of Fame. He lives in Las Vegas with his wife, Kiki, and their children.

Hunter S. Thompson was born in Louisville, Kentucky in 1937. He began his writing career as a sports columnist in Florida and went on to work on newspapers and magazines in New York, San Juan and Rio de Janeiro. His articles appeared in Esquire, Rolling Stone magazine and the San Francisco Chronicle.

He is the author of a number of books, including Fear and Loathing in Las Vegas, Fear and Loathing on the Campaign Trail '72, The Great Shark Hunt, Generation of Swine, The Curse of Lono, Songs of the Doomed, Better Than Sex, The Proud Highway and The Rum Diary. Hunter S. Thompson died in 2005.