The program has contestants compete against each other in a series of stunts. The person who finishes better and/or quicker than all the other contestants gets a prize of US$50,000. For the first five years the program was made, the contestants were usually three men and three women. Each person played for themselves. In the sixth year, the show changed. They started using four teams of two people. The members of each team had some relationship with one another, for example Father-daughter, Husband-wife, or friends. Each team played for a shared prize of the same amount. "Fear Factor" is hosted by comedian Joe Rogan and executive produced by Matt Kunitz. The main music for the program is composed and written by Russ Landau. Other music used on the show is made from rhythmic themes most notably taken from the popular game "Half-Life".