"Olivia Newton-John: Hopelessly Devoted to You" stars Aussie singer and actress Delta Goodrem as the beloved four-time Grammy winner. And if you think Goodrem looks and sounds just like her subject, it may be because the two stars are pals in real life.
The movie, which originally aired in Australia, follows along as Newton-John makes her debut on the Australian talent show "Sing, Sing, Sing." Later, she finds fame as both a singer and an actress, charming audiences as good girl Sandy in the smash hit "Grease" and scoring crossover hits on the pop and country charts.
The movie also delves behind the scenes into the brave star's private life as she endures multiple battles with cancer.
Goodrem, a longtime judge on Australia's "The Voice," re-recorded Newton-John's classic hits for the movie.
In 2008, she and the singer wrote and recorded the single "Right Here With You" — and the two perform a pair of new duets together on the new movie's soundtrack, titled "I Honestly Love You."
"Olivia Newton-John: Hopelessly Devoted to You" airs Saturday, at 8 p.m. ET, on Lifetime.