See all the A-listers -- Madonna, Tom Hanks and many more -- who surprised Winfrey for the finale of her show after 25 years
Gayle King, Oprah and Maria Shriver
Oprah's "best girlfriends" stood proudly by her side. "Over the years, you have shared that very generous spirit. You've believed in others, so they can believe in themselves," Shriver (hours after her estranged husband Arnold Schwarzenegger's shocking revelation of a love child) said.
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