A música I Walk the Line de Johnny Cash é uma declaração de devoção fiel a sua esposa, Vivian Cash. Johnny Cash explicou que a linha consistente de graves na música simboliza seu compromisso de permanecer fiel. A música foi inspirada quando Cash estava na Força Aérea, longe de sua namorada, Vivian. Ele queria escrever uma música que expressasse seu compromisso para com ela e a frase I walk the line (Eu sigo a linha) veio à mente como um compromis ... Ver mais [+] so de se comportar e permanecer fiel. A música se tornou emblemática não apenas do amor de Cash por sua esposa, mas também de sua integridade musical e pessoal.
I keep a close watch on this heart of mine I keep my eyes wide open all the time I keep the ends out for the tie that binds Because you're mine, I walk the line (Then walk up to A)
I find it very, very easy to be true I find myself alone when each day is through Yes, I'll admit that I'm a fool for you Because you're mine, I walk the line (Then walk up to D)
As sure as night is dark and day is light I keep you on my mind both day and night And happiness I've known proves that it's right Because you're mine, I walk the line (Back down to A)
You've got a way to keep me on your side You give me cause for love that I can't hide For you I know I'd even try to turn the tide Because you're mine, I walk the line (And back to E again)
I keep a close watch on this heart of mine I keep my eyes wide open all the time I keep the ends out for the tie that binds Because you're mine, I walk the line