'This plant is a healing plant:' Olivia Newton-John spruiks the benefits of medical marijuana on US Today show as she battles breast cancer for the second time

She's the entertainment icon who is currently battling breast cancer for a second time.

And Olivia Newton-John has again espoused the benefits of medical marijuana,saying that it was a 'healing plant.'

Olivia, 68, made the admission during an appearance on the US Today show, where she challenged misconceptions about the maligned plant.