Barack Obama
Former president Barack Obama began training in taekwondo when he was a junior senator from Illinois in 2001. He earned a green belt for his training, and in 2009, he was given an honorary black belt by South Korean President Lee Myung-Bak. He has also trained in Brazilian jiujitsu.
Dave Mustaine
Megadeth frontman Dave Mustaine has been training in martial arts since he was 12 years old, In fact, he has earned a black belt in karate as well as taekwondo. He even is a goodwill ambassador for the World Taekwondo Federation. He earned a Brazilian jiujitsu purple belt when he was 59 years old!