I love the grateful dead, especially when they were on tour but have to admit I don't know much about them.
Grateful Dead was inducted into the Rock and roll Hall of Fame in 1994 and a recording of their 1977 performance at Cornell University was added to the Registry of the Library of Congress in 2012.
Wow that is amazing and well deserved. When did they form as a band?
The Grateful Dead was formed in 1965. They're from Palo Alto California! 
Amazing. How many of them are there in the group again?
worldwide.
The Grateful Dead was founded in the San Francisco Bay Area amid the rise of the counterculture of the 1960s. The founding members were Jerry Garcia (lead guitar, vocals), Bob Weir (rhythm guitar, vocals), Ron "Pigpen" McKernan (keyboards, harmonica, vocals), Phil Lesh (bass, vocals), and Bill Kreutzmann (drums). Members of the Grateful Dead had played together in various San Francisco bands, including Mother McCree's Uptown Jug Champions and the Warlocks. Lesh
distilled into a diverse and psychedelic whole that made the Grateful Dead "the pioneering Godfathers of the jam band world". The band was ranked 57th by "Rolling Stone" magazine in its The Greatest Artists of All Time issue. The band was inducted into the Rock and Roll Hall of Fame in 1994 and a recording of their May 8, 1977, performance at Cornell University's Barton Hall was added to the National Recording Registry of the Library of Congress in 2012. The Grateful Dead have sold more than 35 million albums