The Boxmasters is an American country rock/rockabilly band founded in Bellflower, California in 2007. It features Academy Award-winning actor Billy Bob Thornton playing the drummer and vocalist, with J.D. Andrew on rhythm guitar, Danny Baker (aka Unknown Hinson) on bass guitar, Brad Davis doing vocals and playing lead guitar, and Michael Wayne Butler on guitars and lap steel. The group has released three albums on Vanguard Records, the first being the eponymous The Boxmasters and the second being the holiday album Christmas Cheer, in 2008.

Before he started The Boxmasters, frontman Thornton had played in two cover bands, worked as a roadie, and released four solo albums. After listening to "Yesterday's Gone" by Chad & Jeremy and thinking about covering it in a hillbilly music style, he had the idea of making Americanized version of British Invasion pop songs. During its early days, the band played several live shows in the California area, as well as in Tecate, Mexico. From mid-2008 to late-2008, the group embarked on a tour across the United States, ending in Los Angeles. It also played for the March 2009 South by Southwest conference. The group went on to play in Canada in early-2009. In the aftermath of a controversial interview on the CBC Radio One program Q in early-April 2009, in which Thornton labeled his Canadian audience 'mashed potatoes with no gravy', the band stopped its Canadian tour early. It resumed touring in mid-April 2009 in the United States.