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LAS VEGAS, NV - MAY 21: Actress/singer Cher performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

LAS VEGAS, NV - MAY 21:  Actress/singer Cher performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada.  (Photo by Ethan Miller/Getty Images)

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LAS VEGAS, NV - MAY 21: Singer Cher performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by John Shearer/BBMA2017/Getty Images for dcp)

LAS VEGAS, NV - MAY 21:  Singer Cher performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada.  (Photo by John Shearer/BBMA2017/Getty Images for dcp)

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BOGOTA, COLOMBIA - OCTOBER 07: US singer Cher attends the One Young World Summit 2017 at Agora Bogota Convention Center in Bogota, Colombia on October 07, 2017. (Photo by Lokman lhan/Anadolu Agency/Getty Images)

BOGOTA, COLOMBIA - OCTOBER 07:  US singer Cher attends the One Young World Summit 2017 at Agora Bogota Convention Center in Bogota, Colombia on October 07, 2017. (Photo by Lokman lhan/Anadolu Agency/Getty Images)

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Portrait of American singer and actress Cher as she sits on a very fuzzy couch dressed in a sweatshirt, jeans, and high heels, Los Angeles, California, 1987. (Photo by Anthony Barboza/Getty Images)

Portrait of American singer and actress Cher as she sits on a very fuzzy couch dressed in a sweatshirt, jeans, and high heels, Los Angeles, California, 1987. (Photo by Anthony Barboza/Getty Images)

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LAS VEGAS, NV - MAY 21: Actress/singer Cher performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

LAS VEGAS, NV - MAY 21:  Actress/singer Cher performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada.  (Photo by Ethan Miller/Getty Images)