The Allman Brothers Band was an American rock band formed in Jacksonville, Florida in 1969 by brothers Duane Allman (slide guitar and lead guitar) and Gregg Allman (vocals, keyboards, songwriting), as well as Dickey Betts (lead guitar, vocals, songwriting), Berry Oakley (bass guitar), Butch Trucks (drums), and Jai Johanny "Jaimoe" Johanson (drums). While the band has been called the principal architects of southern rock, they also incorporate elements of blues, jazz, and country music, and their live shows have jam band-style improvisation and instrumentals.