From Grease to Wax: Olivia Newton-John still the one

Olivia Newton-John takes a selfie side-by-side to reveal brand new Madame Tussauds Hollywood wax figure at the Flamingo Las Vegas on August 9, 2014 in Las Vegas, Nevada. (Getty Images for Madame Tussauds Hollywood)

Olivia Newton-John poses side-by-side to reveal brand new Madame Tussauds Hollywood wax figure at the Flamingo Las Vegas on August 9, 2014 in Las Vegas, Nevada. (Getty Images for Madame Tussauds Hollywood)

Olivia Newton-John unveils her Madame Tussauds Hollywood wax figure at the Flamingo Las Vegas on August 9, 2014 in Las Vegas, Nevada. (Photo by Mindy Small/FilmMagic)

Olivia Newton-John unveils her Madame Tussauds Hollywood wax figure at the Flamingo Las Vegas on August 9, 2014 in Las Vegas, Nevada. (Photo by Mindy Small/FilmMagic)

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