As MMA has gathered momentum in the sporting stratosphere, so has its popularity among the celebrities, who have begun to appreciate an art where a variety of disciplines are entwined to produce artistic beauty and brutality in equal measures.
At present, MMA is fast following in the footsteps of boxing, which once held sway over the "must be seen at a sporting event" culture. And as such, stars from almost any vocation are more or less keen to be affiliated with it.
Some grace the events with their presence for a number of reasons, while others are content just to be practitioners of the sport. However, there are a few celebrities that are its biggest fans.
Here they are.