"I Walk the Line" is a song by Johnny Cash, released in 1956. The song expresses themes of love, fidelity, and commitment, with Cash promising to stay true to his partner despite temptations. Its distinctive sound features a steady rhythm and simple guitar melody, making it a classic in the country music genre. The song became one of Cash's signature pieces and contributed to his rise in popularity. It has been covered by various artists and featured in films, further solidifying its place in American music history. The song's enduring appeal lies in its heartfelt lyrics and relatable message.