On This Date In Music

1956 - Johnny Cash released his classic song, 'I Walk the Line', which became his first No. 1 Billboard country hit and remained on the charts for over 43 weeks, selling over 2 million copies. The unique chord progression for the song was inspired by backwards playback of guitar runs on Cash's tape recorder while he was in the Air Force stationed in Germany.

1976 - Led Zeppelin started a two-week run at No. 1 on the US album chart with Presence, the group's fifth No. 1 album.