Friends, family and fans of Johnny Cash will be honoring the legend's 80th birthday today (Feb. 26). The 'Man in Black' had a career that lasted nearly 50 years, from 1955 until his death in September of 2003. He released over 50 studio albums, 150 singles and scored over a dozen No. 1 hits.

But which song is the best Johnny Cash song? Many of his top songs, like 'Jackson' and 'Hurt,' never reached the top of the charts, but became some of the most influential recordings in country music history. We chose five of Cash's most recognizable hits for this reader's poll. If you think one deserves inclusion, be sure to mention it in the comments section below.

2012 will be a big year for Cash and his legacy. In addition to the construction of the Johnny Cash Museum in Nashville, today begins the groundbreaking restoration of his Dyess, Ark. boyhood home. To celebrate further, check out this rare collection of Cash family photographs from Time Magazine.