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Instead of announcing the name of today's surprise guest herself, Oprah asks a member of the audience, Tiffany, to do the honors. Tiffany has no idea she's about to introduce her all-time favorite celebrity!
An excited Tiffany reads from the prompter, "She's a three-time Grammy award-winning, multiplatinum artist. ... Please welcome the queen of hip-hop—and my hero—Mary J. Blige!"