John R. Cash was an American singer-songwriter. Most of his music contains themes of sorrow, moral tribulation, and redemption, especially songs from the later stages of his career. He was known for his deep, calm, bass-baritone voice, the distinctive sound of his backing band, the Tennessee Three, that was characterized by its train-like chugging guitar rhythms, a rebelliousness coupled with an increasingly somber and humble demeanor, and his free prison concerts. Cash wore a trademark all-black stage wardrobe, which earned him the nickname "Man in Black".
Born to poor cotton farmers in Kingsland, Arkansas, Cash grew up on gospel music and played on a local radio station in high school. He served four years in the Air Force, much of it in West Germany. After his return to the United States, he rose to fame during the mid-1950s in the burgeoning rockabilly scene in Memphis, Tennessee. He traditionally began his concerts by introducing himself with "Hello, I'm Johnny Cash". He began to follow that by "Folsom Prison Blues", one of his signature songs. His other signature songs include "I Walk the Line", "Ring of Fire", "Get Rhythm", and "Man in Black".