She burst on to the scene as "Sandy" in the popular late 70's musical film "Grease".
She's entertained millions over the years, and had pop music hits in the 70's and 80's.
Now, Olivia Newton-John is battling cancer, again. She's already fought off breast cancer, but it apparently has resurfaced.
Thoughts and prayers to Olivia and her family.
Video: Youtube/Fox News