Adam Keith Watt (born 10 November 1967) is an Australian former boxer and kickboxer. He has studied kickboxing, Seido-kaikan karate, and boxing. His nickname was "Lights Out" because of his high level karate and boxing skills, and one punch knock out power. He has won many world kickboxing titles, and reached as high as 10th in the highly respected World Boxing Council's & World Boxing Organisation's (W.B.C & WBO) Cruiserweight ratings. In 2000, he challenged WBO cruiserweight champion Johnny Nelson for his title. Watt holds the notable distinction of being the first athlete to fight for world Karate, kickboxing and boxing titles.