Back to Basics: The Essential Collection 1971-1992

She started her career as an inoffensive pop singer who sang of the benefits of getting "mellow" ("Have You Never Been Mellow"). Her transformation into a brazen aerobics sex-throb with "Physical" is as radical as what happens to her character, Sandra Dee, in the movie Grease. Three cuts from which ("Hopelessly Devoted to You," "You're the One That I Want," and "Summer Nights") are featured here. Add a few other hits, "A Little More Love" and "Magic" and you've got a full spectrum view of what she can do. From syrupy ballad queen to workout addict, she got it on the radio. --Rob O'Connor

• Gold [2 CD]
• Magic: The Very Best of Olivia Newton-John
• Olivia Newton-John: Greatest Hits, Vol. 2
• The Best ...So Far
• Rumour
• Don't Stop Believin'
• Grease (Original 1978 Motion Picture Soundtrack)
• Quentin Tarantino's Once Upon a Time in Hollywood Original Motion Picture Soundtrack
• Have You Never Been Mellow
• 20th Century Masters - The Best of Olivia Newton-John: The Millennium Collection