Oprah Winfrey arrives at the 87th Academy Awards nominees luncheon at the Beverly Hilton Hotel on Monday, Feb. 2, 2015, in Beverly Hills, Calif. Jordan Strauss/Invision/AP hide caption

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Jordan Strauss/Invision/AP

Zanele Themba (on the left with the pink backpack strap) admires American teens because they "know what they want and go for it." She's posing with classmates from the Sapphire Secondary School who participated in a model U.N. in Johannesburg. Courtesy of Youth@SAIIA hide caption

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Courtesy of Youth@SAIIA

Oprah Winfrey will join the board and will lend her name and image to Weight Watchers marketing. Brynn Anderson/AP hide caption

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Brynn Anderson/AP

Oprah Hopes Her Midas Touch Gilds Her OWN Series, 'Belief'

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Oprah Winfrey gave $12 million Tuesday to help build the Smithsonian's new National Museum of African American History and Culture, seen here in a scale model (lower center). The facility is expected to open in 2015. Allison Keyes/NPR hide caption

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Allison Keyes/NPR

The June issue of The Oprah Magazine includes an article with details on Oprah Winfrey's new farm in Hawaii. The Oprah Magazine hide caption

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The Oprah Magazine

Lance Armstrong, during the interview with Oprah Winfrey that was recorded Monday and began airing Thursday night. George Burns/Oprah Winfrey Network/Getty Images hide caption

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George Burns/Oprah Winfrey Network/Getty Images

Livestrong 'Disappointed' By Lance Armstrong, But Still Grateful To Him

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Oprah Winfrey talks to cyclist Lance Armstrong in Austin, Texas, on Monday. The first part of the interview airs Thursday night. George Burns/Courtesy of Harpo/AP hide caption

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George Burns/Courtesy of Harpo/AP

Lance Armstrong at the 2000 Sydney Olympic Games, celebrating his bronze medal performance. Pedro Ugarte /AFP/Getty Images hide caption

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Pedro Ugarte /AFP/Getty Images