Jennifer Finch, the bassist, vocalist and songwriter whose ferocious presence helped power L7 through the ’90s alternative-rock boom, has died. She was 59.

Finch died following an aggressive form of brain cancer, according to a statement announcing her death.

L7 paid tribute to Finch in a statement, writing, “We are shattered by the loss of our beloved bandmate, sister and friend Jennifer Finch, whose fierce spirit, humor and boundless creativity helped shape L7 and changed all of our lives forever.”

“Jennifer was a true original who lived entirely on her own terms, and the impact she made on music, art and everyone lucky enough to know her cannot be measured,” the band continued. “We love her beyond words and will carry her with us always. Rest in power our dear friend.”

The statement was signed, “With Love, L7.”

Finch’s death comes shortly after L7 shared that she had been diagnosed with an aggressive form of brain cancer and would be unable to join the band’s upcoming farewell tour. The band said at the time that she required extensive medical care, rehabilitation and professional in-home support following multiple surgeries and serious complications.

Finch was a core member of L7’s classic lineup, anchoring the band’s guitar-heavy attack with a bass style that was blunt, melodic and built for maximum impact.

Alongside Donita Sparks, Suzi Gardner and Dee Plakas, she helped define L7’s place at the intersection of punk, metal, grunge and alternative rock, where the band’s distortion-heavy songs carried sharp humor and political bite.

Formed in Los Angeles in 1985, L7 broke through during the alternative boom of the early ’90s, becoming known for songs including “Pretend We’re Dead,” “Shove,” “Andres” and “Fuel My Fire.” Their 1992 album, Bricks Are Heavy, produced by Butch Vig, became a cornerstone release for the band, pairing sludgy riffs and shout-along hooks with a restless, anti-gloss spirit.

Finch’s work with L7 was part of a broader creative life that extended beyond the stage. She was also a photographer, writer and visual artist, building a multidisciplinary practice that reflected the same raw, self-directed spirit she brought to music.

The statement announcing her death also acknowledged “the extraordinary outpouring of love and support” shown to Finch and those caring for her, adding that it had “meant more than words can express.”