LOS ANGELES: Signe Anderson, the first female vocalist of legendary American rock band Jefferson Airplane, has died. She was 74.

Anderson died on January 28, the same day the band’s co-founder Paul Kantner died of multiple organ failure and septic shock. But news of Anderson’s death has emerged only now, reports variety.com.

The cause of her death is yet to be revealed, but former band mate Jack Casady said Anderson had recently been entered into hospice care.

Anderson was born Signe Toly in Seattle, and raised in Portland. She joined Jefferson Airplane in 1965, marrying Merry Prankster Jerry Anderson shortly after.

The vocalist sang on the band’s debut album in 1965, Jefferson Airplane Takes Off, which featured her lead vocals on Chet Powers’ Let’s Get Together and Chauffeur Blues. Anderson gave her last performance with Jefferson Airplane on October 15, 1966. Grace Slick took the stage with the band the following night.

After the news of her death came out, tributes from Anderson’s former band mates poured out on social media.

“One sweet lady has passed on,” Marty Balin wrote on his Facebook page.

“Signe was one of the strongest people I have ever met,” guitarist Jorma Kaukonen wrote on his blog.