Originally known as The New Age Outlaws in the World Wrestling Federation (WWF) and wrestling under the ring names "Road Dogg" Jesse James and "Badd Ass" Billy Gunn, the duo achieved high levels of success and became extremely popular in the late 1990s as members of the second incarnation of the stable D-Generation X. The promotion has described James and Gunn as "the most popular duo of WWE's Attitude Era." In the same time period, The New Age Outlaws had the third highest merchandise sales in the WWF after Stone Cold Steve Austin and The Rock.
Upon parting ways with the WWF, the team reformed in several promotions, mostly notably in Total Nonstop Action Wrestling where, under the ringnames B.G. James and Kip James, they performed collectively as the James Gang and then as the Voodoo Kin Mafia, the latter of which was a play on the initials of their former boss in the WWE Vince McMahon. The team returned to periodic active competition in WWE under its original name in 2013 (with both members also having full time backstage jobs with the company as well).