Pearl Jam (top left), Missy Elliott (top right), the cover of Nirvana's Nevermind (bottom right), PJ Harvey (bottom left), Jeff Mangum of Neutral Milk Hotel (center). Courtesy of the artists hide caption

itoggle caption Courtesy of the artists

Grateful Dead fans gather in the parking lot before a show this summer at Levi's Stadium in Santa Clara, Calif. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images