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ALLENTOWN, PA - SEPTEMBER 08: Elton John performs onstage during his 'Farewell Yellow Brick Road' tour at PPL Center on September 8, 2018 in Allentown, Pennsylvania. (Photo by Kevin Mazur/Getty Images for Rocket Entertainment )

ALLENTOWN, PA - SEPTEMBER 08:  Elton John performs onstage during his  'Farewell Yellow Brick Road' tour at PPL Center on September 8, 2018 in Allentown, Pennsylvania.  (Photo by Kevin Mazur/Getty Images for Rocket Entertainment )