thank you, good night. >> a movie about the live of sing singer olivia newton-john. >> we talked to hern tra voeltda about olivia's prognosis as she fights cancer for the third time. >> the rumors of my death have been greatly exaggerated. >> last month she fought back against the tabloids. although she's undergoing treatment, she's not near death. how is she? >> she's fine. sometimes it becomes a mystery but she's fine. >> her memoir comes out next month. the cancer battle is dealt with in a movie. delta and olivia are friends, so she got the icon's blessing. >> okay, olivia. you don't understand, i have to do a good job for you. so at the end of the day that was what was most important to me ♪ but now there's nowhere to hide since you pushed my love aside ♪ >> the movie flashes back to the making of "grease." >> when we made the movie, she was 20 years old. they were in the paramount wardrobe department. >> delta and olivia have even a stronger connection. delta successfully beat hodgkin's lymphoma. ♪ let me be there in your morning ♪ >> delta and olivia have rored together and she ca