Widely considered the pinnacle of the Grateful Dead's live performances. The Spring 1977 tour featured the classic lineup of Jerry Garcia, Bob Weir, Phil Lesh, Bill Kreutzmann, Mickey Hart, Keith and Donna Godchaux. The May 8 show at Cornell University's Barton Hall is regarded by many Deadheads as the greatest concert ever performed. Added to the Library of Congress National Recording Registry in 2012.