Olivia Newton-John, singer and actress, dead at 73

'Olivia has been a symbol of triumphs and hope for over 30 years'

Originally Published: 08 AUG 22 15:37 ET Updated: 08 AUG 22 16:06 ET By Brandon Griggs, CNN (CNN) -- Olivia Newton-John, the Australian singer whose breathy voice and wholesome beauty made her one of the biggest pop stars of the…