Celebrating one of the most legendary and diverse careers of all time, Johnny Cash 'The Greatest' series highlights and honors the various musical sides of Johnny Cash.

This 19-song overview of all of Johnny Cash's #1 hits is the most stellar collection of his most beloved work. From absolute classic "I Walk The Line," to "A Boy Named Sue," which made Cash a superstar, to the legendary live performance of "Folsom Prison Blues," the best work of Johnny Cash is represented here.

Few artists ever achieved the legendary status of Johnny Cash and these 19 tracks represent Johnny Cash at his peak. The Number Ones displays the absolute chart-topping prowess of a superstar as big as any artist in history.