Grateful Dead
The group were together from 1965 to 1995, when Jerry Garcia, the group's lead guitarist and singer, who was seen by many people as the group's leader, died.  The other members were Bob Weir (guitar and singing), Phil Lesh (bass guitar), Ron "Pigpen" McKernan (keyboards, harmonica, and singing) and Bill Kreutzmann (drums). All of these members were in the group the entire time, they were together, except for McKernan who died in 1973. Other main members of the band were Mickey Hart (drums 1967 to 1971 and 1974 to 1995), Keith Godchaux (keyboards 1971 to 1979), his wife Donna Godchaux (singing 1972 to 1979), Brent Mydland (keyboards 1979 to 1990), and Vince Welnick (keyboards 1990 to 1995).