Roots of Elvis Costello

Jamey Johnson is an American country music singer and songwriter.

Roger Troutman, also known simply as Roger, was an American singer, musician, songwriter, and record producer. He was the founder of the band Zapp who helped spearhead the funk movement and influenced West Coast hip-hop due to the scene's heavy sampling of his music.

James Edward Olliges Jr., professionally known as Jim James or Yim Yames, is an American vocalist, guitarist, producer, and primary songwriter of the rock band My Morning Jacket. He has also released several solo albums.

Bread was an American soft rock band from Los Angeles, California. They had 13 songs chart on the Billboard Hot 100 between 1970 and 1977.

NRBQ is an American rock band founded by Terry Adams (piano), Steve Ferguson (guitar) and Joey Spampinato (bass). Originally the "New Rhythm and Blues Quintet", the group was formed circa 1965. Adams disbanded it for a time, and the group re-formed in 1967. The quartet is known for its live performances, containing a high degree of spontaneity and levity, and blending rock, pop, jazz, blues and Tin Pan Alley styles.

Graham Thomas Parker is an English singer-songwriter, who is best known as the lead singer of the British band Graham Parker & the Rumour.

The Grateful Dead was an American rock band formed in Palo Alto, California, in 1965. Known for their eclectic style that fused elements of rock, blues, jazz, folk, country, bluegrass, rock and roll, gospel, reggae, and world music with psychedelia, the band is famous for improvisation during their live performances, and for their devoted fan base, known as "Deadheads". According to the musician and writer Lenny Kaye, the music of the Grateful Dead "touches on ground that most other groups don't even know exists". For the range of their influences and the structure of their live performances, the Grateful Dead are considered "the pioneering godfathers of the jam band world".