Jefferson Airplane co-founding member Paul Kantner died on Thursday.

The singer-guitarist and San Francisco native passed away at age 74 due to multiple organ failure and sept shock after suffering a heart attack earlier in the week.

Here are sec things to know about him:

• He co-founded Jefferson Airplane and its more successful spinoff Jefferson Starship.
• The late 60s psychedelic sound was pioneered by Kantner. Jefferson Airplane had five albums that went gold.
• The band played in Woodstock at the peak of their career, a concert only rivaled by the Altamont Speedway Free Festival with the Rolling Stones in 1969.
• Kantner and his bandmates often quarreled, leading to a number of internal changes throughout the years.
• He released a solo album called “Blows Against the Empire” with singer Grace Slick before the band broke up.
• Jefferson Starship included Slick and it spawned a number of hits such as “We Built This City” and “Miracles,” achieving double platinum with “Red Octopus” in 1975.
• Kantner and Jefferson Airplane were inducted into the Rock and Roll Hall of Fame in 1996.

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