scar Gutirrez is an American professional wrestler, better known by the ring name Rey Mysterio Jr, or simply Rey Mysterio (Spanish for ''King Mystery''), who is currently signed to Lucha Underground. Widely regarded as the greatest cruiserweight wrestler of all time, Mysterio is best known for his appearances with Extreme Championship Wrestling, World Championship Wrestling and WWE between 1995 and 2015.
Mysterio is known for his high-flying Lucha libre wrestling style, which is credited with having helped kick-start the emergence of cruiserweight wrestling in the United States in the mid-1990s. Championships held by Mysterio over the course of his career include WWE's World Heavyweight Championship, the WWE Championship, WCW/WWE Cruiser weight Championship, WCW World Tag Team Championship, WCW Cruiser weight Tag Team Championship, WWC World Junior Heavyweight Championship, WWE Tag Team Championship, and WWE Intercontinental Championship.