Jefferson Airplane guitarist, vocalist and founding member Paul Kantner has died. He was 74. 

Kantner passed away on Thursday, January 28th of multiple organ failure, following a heart attack earlier in the week, reports Colin Stutz of Billboard.

Jefferson Airplane performed at the three most famous American rock festivals of the 1960s:  Monterey in 1967, and Woodstock and Altamont both in 1969. In 1996, Kantner was inducted into the Rock and Roll Hall of Fame for his work with the band. 

Kantner is the first of Jefferson Airplane's founding members to have passed away. He was also a founding member of the group's spinoff band, Jefferson Starship, which took off in 1974.