ET caught up with Chloe Lattanzi, 31, at San Diego Comic-Con, where she opened up about her mom's battle with breast cancer.
Crow celebrated 10 years of being cancer-free last year.
The singer's daughter said she received "incredibly insensitive" comments about her recent posts.
'Sharknado' has gone global!
Lattanzi took to Instagram to share an update on her mother's plan to fight her illness with cannabis and 'other natural healing remedies.'
The 68-year-old was forced to postpone her tour due to health issues.
The 68-year-old singer announced on Tuesday that her cancer had returned.
Olivia Newton-John Reveals Her Breast Cancer Has Spread, Postpones Concert Dates
Tell me about it, stud.
Olivia tells '60 Minutes Australia' she still wonders what really happened.
Olivia Newton-John talks reports that her ex-boyfriend, Patrick McDermott, faked his own death and is now living in Mexico.
The singer opens up to ET about internet trolls and finding her own confidence.
The singer is over people connecting her bust size to her intellect.