John Popper, the singer for Blues Traveler, explained this in a Guitar World interview: "In the summer, we'd all go out and draw maybe one or two thousand people.
Inspired by the previous summer's success of Perry Farrell's Lollapalooza festival (which had been organized by Bill Graham Presents, the driving force behind Blues Traveler's record and promotional deal), John Popper and Dave Frey called upon their compatriots Widespread Panic, The Samples, the Spin Doctors, the Aquarium Rescue Unit and Phish to join them in a nationwide, summer, amphitheater tour.
After originally christening the traveling spectacle "Horizons of Rock Developing East Coast", the vision spread to "Everywhere", and so the name was created.
tour, featuring such new jam icons as the Spin Doctors, Phish, Widespread Panic, the Aquarium Rescue Unit (and subsequent Col. Bruce Hampton projects), including Dave Matthews Band, allowed for a new generation of experimental improvisational music to hit a national audience.
The festival was able to bring together a group of musicians with a similar approach to live performance, and thus consolidate fans of the music; hence, a scene was created around the developing genre.
Festival was officially revived on July 9, 2015, featuring Blues Traveler, 311, The Verve Pipe and Big Head Todd and the Monsters.