Australians were saddened and shocked to wake up to the news that Olivia Newton-John, singer of "I Honestly Love You" and "Physical" and star of the hit movie musical "Grease," died on Monday at age 73 at her home in Southern California.

Sydney - Olivia Newton-John, the Australian singer who found worldwide fame in the hit movie "Grease", has revealed she has been diagnosed with cancer for the third time.