Grunge legend Jennifer Finch has shared a photo of her brain surgery scar with her public as her family and friends plead for donations amid her cancer battle.

Finch, 59, who is best known as the bassist and vocalist for the 1990s girl group L7, went public Monday with news she has been diagnosed with a brain tumor.

Her bandmates announced her illness in an Instagram statement revealing she had been forced to pull out of their upcoming farewell tour.

'Following multiple surgeries and serious complications, Jennifer now requires extensive medical care, rehabilitation and professional in-home support,' they wrote.

They linked to a GoFundMe set up by her loved ones, containing a picture of Finch pulling back her hair to reveal the still healing incision after one operation.