Mix the four spirits together into the shot glass, and down immediately.
The Four Horsemen is a cocktail containing four hard liquors and named after the Four Horsemen of the Apocalypse. The name of the drink is derived from the fact that the most common brand names of each ingredient are also male given names and the drinks have a high alcohol content (and therefore tend to have a very strong effect on human physiology). Additionally, the four brand names usually all begin with the letter "J" (see sidebar), giving further unity to the concept of the "Four Horsemen".
Four Horsemen Go To Hell - Do one of each liquor in short form (5 total). One shot Jack Daniels, one shot Jim Beam, one shot Johnnie Walker, one shot Jose Cuervo and the last shot is Bacardi 151 that you may or may not light up.
Four Horsemen Rite of Passage - The way they are made here in a glass- two shots Jack Daniels, two shots Jim Beam, two shots Johnnie Walker, two shots Jose Cuervo. These are generally bought for you on your twenty-first birthday.
Three ingredient variants - If only three of the whiskey ingredients are used, it is often referred to as Three Wise Men. Similarly themed variants as above exist for the three ingredient version as well (e.g. Three Wise Men go Hunting)
Flaming Four Horsemen - For this variant, each part is poured into its own shot glass in a row and then topped with an easily flammable liquor (such as Bacardi 151 or Everclear) poured across all four glasses in a line. Lighting one side should send the flames across all four glasses, which are then blown out and drunk. Usually performed by four people as a group shot.