U2 guitarist The Edge praised Johnny Cash as an “incredible man”, comparing his voice to the Grand Canyon. The comparison highlights Cash’s unusually deep, weathered sound and its sense of scale, history and emotional weight across American musical traditions.

The Edge said the phrase captured Cash’s voice perfectly, adding that Cash was “big in every sense” but also funny and self-deprecating. The article links this admiration to U2’s longstanding interest in American music, particularly during the era of *The Joshua Tree* and *Rattle and Hum*, when the band explored blues, gospel, folk and rock influences.