Dolly Parton was still thinking about helping others even as her own health was reportedly failing.

The country music legend, who died Tuesday at age 80 after battling an unspecified form of cancer, made an extraordinary request to her medical team shortly before her death, according to her younger sister, Stella Parton.

Stella, 77, revealed that Dolly was willing to undergo experimental treatments even if doctors believed there was no hope of saving her — simply because the results might help future cancer patients.

“My sister was one of the most generous, thoughtful and kind people I’ve ever known,” Stella wrote in an emotional Instagram tribute.

“What the world saw is exactly who she was, so much so, she told me recently that if there was no hope for her, she would still allow her medical team to try experimental drugs in the hope of helping others in the future.”

It was a remarkably selfless final request from a woman whose decades-long career was matched by an equally remarkable record of philanthropy.

Parton’s nephew, Bryan Seaver, initially announced her death in an Instagram video before the family released an official statement.

Although the exact type of cancer Parton had been battling has not been publicly disclosed, Stella’s revelation offers a glimpse into the country superstar’s mindset as her health declined.

Helping advance medicine was nothing new for Parton.

In 2020, she famously donated $1 million toward coronavirus vaccine research at Vanderbilt University Medical Center. Her contribution helped support work connected to the development of Moderna’s COVID-19 vaccine.

Over the years, Parton also supported research involving pediatric cancer and infectious diseases while quietly pouring millions into charitable causes.

For Stella, however, Dolly’s generosity went far beyond writing checks.

“Dolly loved the world and everyone in it,” she wrote.

Stella recalled that while she would sometimes complain about people or the state of the world, Dolly would brush it off with her trademark humor.

“Shoot, Tedda, we got more important things to worry about than their silly a–es,” Stella remembered her sister telling her.

“She was right, and she proved it every day.”

Since news of Parton’s death broke, tributes have poured in from celebrities, politicians and generations of fans who grew up listening to songs including “Jolene,” “9 to 5” and “I Will Always Love You.”

Interest in her music has also exploded.

Spotify streams of Parton’s songs reportedly surged by more than 1,200% following her death, while searches for the beloved singer briefly outpaced searches for sports and weather.

But Stella said the greatest tribute to her sister would be for people to follow Dolly’s example.

“She left the world a better place by being in it,” Stella wrote. “So let’s follow her example.”

Even in her final days, it appears Dolly Parton was still searching for one more way to give something back.