Couric's longtime "Today" partner, Matt Lauer, started out Wednesday's three-hour tribute with the words: "Farewell friend."
A number of notables from politicians to entertainers taped messages to Couric including former President Bill Clinton, Secretary of State Condoleezza Rice, Sting and Julie Andrews.
"Dateline's" Stone Phillips serenaded her at the piano and weatherman Al Roker teared up during tributes to Couric's late husband and sister, who both died of cancer.
Couric's own farewell was not without emotion as she noted, "They're not just coworkers. They're lifelong friends."
"And I know I'll never have a partner like you," she told Lauer, "because I'll never be working with a partner again."
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