“Oldchella” officially called Desert Trip, three-day fest with Rolling Stones, McCartney, Dylan, The Who, Neil Young & Roger Waters
While at this point everyone will continue to call it "Oldchella," the megashow with The Rolling Stones, Paul McCartney, Bob Dylan, Neil Young, The Who, and Roger Waters now has an official name, Desert Trip, and it will happen October 7 - 9 at Empire Polo Club in Indio, CA (aka the Coachella grounds). Tickets go on sale Monday, May 9 at 10AM Pacific. If you're wondering, ticket prices range from $199 single-day general admission all the way up to $1,599 3-day reserved grandstand (or 3-day standing pit) passes.
You can check out a conceptual rendering of the field layout: