Badr Hari is a Dutch kickboxer and former mixed martial artist. He is a former K-1 Heavyweight World Champion (2007–2008), It's Showtime Heavyweight World Champion (2009–2010) and K-1 World Grand Prix 2008 and 2009 finalist. Known for his aggressive and explosive fighting style, Hari is widely considered one of the greatest kickboxers of all time.

Kickboxing is a full-contact hybrid martial art and boxing type based on punching and kicking. Kickboxing originated in the 1950s to 1970s. The fight takes place in a boxing ring, normally with boxing gloves, mouth guards, shorts, and bare feet to favor the use of kicks. Kickboxing is practiced for self-defense, general fitness, or for competition. Some styles of kickboxing include: Full contact karate, Muay Thai, Japanese kickboxing, Lethwei, Sanda, and Savate.