Warren Haynes has announced that this summer he will once again lead the Jerry Garcia Symphonic Celebration, an orchestral tribute to the prolific career of the late Grateful Dead icon.

Haynes will be joined by the Boston Pops Orchestra and conductor Keith Lockhart for the event. Two dates have been announced so far, one at Tanglewood Music Center in Lennox, MA, on July 1 and one at Red Rocks Amphitheater in Morrison, CO, on August 1. Haynes also promises that more dates will be added soon.

Pre-sale tickets for the two concerts will be available tomorrow at noon ET, January 20, with the general sale beginning on January 23 for the Red Rocks show and January 24 for the Tanglewood show.