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Oprah Winfrey speaks at the White House Summit on the United State of Women in Washington, DC on June 14, 2016. / AFP / YURI GRIPAS (Photo credit should read YURI GRIPAS/AFP/Getty Images)

Oprah Winfrey speaks at the White House Summit on the United State of Women in Washington, DC on June 14, 2016.  / AFP / YURI GRIPAS        (Photo credit should read YURI GRIPAS/AFP/Getty Images)

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SYDNEY, AUSTRALIA - DECEMBER 12: Oprah Winfrey on stage during her An Evening With Oprah tour on December 12, 2015 in Sydney, Australia. (Photo by Mark Metcalfe/Getty Images)

SYDNEY, AUSTRALIA - DECEMBER 12:  Oprah Winfrey on stage during her An Evening With Oprah tour on December 12, 2015 in Sydney, Australia.  (Photo by Mark Metcalfe/Getty Images)

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NEW YORK, NY - APRIL 20: Oprah Winfrey attends the Tribeca Tune In: Greenleaf at BMCC John Zuccotti Theater on April 20, 2016 in New York City. (Photo by Ben Gabbe/Getty Images for Tribeca Film Festival)

NEW YORK, NY - APRIL 20:  Oprah Winfrey attends the Tribeca Tune In: Greenleaf at BMCC John Zuccotti Theater on April 20, 2016 in New York City.  (Photo by Ben Gabbe/Getty Images for Tribeca Film Festival)

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MONTECITO, CA - OCTOBER 15: Author Oprah Winfrey attends Oprah Winfrey's Gospel Brunch celebrating her new book "Wisdom of Sundays" on October 15, 2017 in Montecito, California. (Photo by Alberto E. Rodriguez/Getty Images)

MONTECITO, CA - OCTOBER 15:  Author Oprah Winfrey attends Oprah Winfrey's Gospel Brunch celebrating her new book "Wisdom of Sundays" on October 15, 2017 in Montecito, California.  (Photo by Alberto E. Rodriguez/Getty Images)

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NEW ORLEANS, LA - JULY 02: Oprah Winfrey speaks onstage during the 2016 ESSENCE Festival presented By Coca-Cola at Ernest N. Morial Convention Center on July 2, 2016 in New Orleans, Louisiana. (Photo by Paras Griffin/Getty Images for 2016 Essence Festival)

NEW ORLEANS, LA - JULY 02:  Oprah Winfrey speaks onstage during the 2016 ESSENCE Festival presented By Coca-Cola at Ernest N. Morial Convention Center on July 2, 2016 in New Orleans, Louisiana.  (Photo by Paras Griffin/Getty Images for 2016 Essence Festival)