Old Crow Medicine Show is an Americana string band based in Nashville, Tennessee. Their music has been called old-time, bluegrass, folk, and alt-country. Along with original songs, the band performs many pre-World War II blues and folk songs. Recording since 1998, they have released four studio albums—O.C.M.S. (2004), Big Iron World (2006), Tennessee Pusher (2008), and Carry Me Back (2012).