Olivia Newton-John, who sang some of the biggest hits of the 1970s and ’80s while recasting her image as the virginal girl next door into a spandex-clad vixen — a transformation reflected in miniature by her starring role in "Grease,” one of the most popular movie musicals of its era — died Monday at her ranch in Southern California. She was 73.

The death was announced by her husband, John Easterling.

Newton-John amassed No. 1 hits, chart-topping albums and four records that sold more than 2 million copies each. More than anything else, she was likable, even beloved.