The gray fox (Urocyon cinereoargenteus) is a mammal of the order Carnivora ranging throughout most of the southern half of North America from southern Canada to the northern part of South America (Venezuela and Colombia). This species and the closely related Channel Island fox (Urocyon littoralis) are the only living members of the genus Urocyon, which is considered to be among the most primitive of the living canids. Though it was once the most common fox in the east, and still is found there, human advancement allowed the red fox to become more dominant. The Pacific States still have the gray fox as a dominant.

The gray fox appeared during the mid Pliocene epoch 3.6 million years ago (AEO) with the first fossil evidence found at the lower 111 Ranch site, Graham County, Arizona with contemporary mammals giant sloth, the elephant-like Cuvieronius, Large-headed llama, and the early small horses of Nannippus and Equus. Genetic analyses of the fox-like canids confirmed that the gray fox is a distinct genus from the red foxes (Vulpes ssp.). Genetically, the gray fox often clusters with two other ancient lineages, the east Asian Raccoon dog (Nyctereutes procyonoides) and the African Bat-eared fox (Otocyon megalotis). Chromosome number is 2n=66. Recent genetic analysis has shown that the gray fox migrated into the northeastern United States post-Pleistocene in association with the Medieval Climate Anomaly warming trend. The Channel Island fox is likely descended from mainland gray foxes.

John R. "Johnny" Cash (February 26, 1932 – September 12, 2003), was an American singer-songwriter, actor, and author, who has been called one of the most influential musicians of the 20th century. Although he is primarily remembered as a country music icon, his songs and sound spanned many other genres including rockabilly and rock and roll—especially early in his career—as well as blues, folk, and gospel. This crossover appeal led to Cash being inducted in the Country Music Hall of Fame, the Rock and Roll Hall of Fame, and Gospel Music Hall of Fame.

Cash was known for his deep, distinctive bass-baritone voice; for the "boom-chicka-boom" sound of his Tennessee Three backing band; for his rebelliousness, coupled with an increasingly somber and humble demeanor; for providing free concerts inside prison walls; and for his dark performance clothing, which earned him the nickname "The Man in Black". He traditionally started his concerts by saying, "Hello, I'm Johnny Cash." and usually following it up with his standard "Folsom Prison Blues".