It's also the new name Mr. Chesney invented for his legion of tailgating fans, who (unlike Deadheads or Jimmy Buffett's Parrothead followers) had somehow never gotten a nickname.
WSJ: Kenny Chesney: King of the Road
2.
And so, like Deadheads 40 years before them (but with espresso as their drug of choice), a new tribe has formed to follow the route from Sun Valley to Aspen to Austin to Switzerland.