'Grease' actress and Grammy-winning superstar Olivia Newton-John dies at 73
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Olivia Newton-John, the Grammy-winning superstar who reigned on pop, country, adult contemporary and dance charts with such hits as "Physical" and "You're the One That I Want" and won countless hearts as everyone's favourite Sandy in the blockbuster film version of "Grease," has died. She was 73. She had 14 top 10 singles just in the U.S., won four Grammys, starred with John Travolta in "Grease" and with Gene Kelly in "Xanadu."