See the A-listers – Halle Berry! Maria Shriver! Madonna! – who bid adieu to the talk-show queen at Chicago's United Center
Credit: John Gress/Reuters/Landov
Updated: Wednesday May 18, 2011 | 05:30 PM EDT
By: Janet Mock
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What a kiss-up! After serenading Oprah with "Oh Happy Day," Usher gives the talk-show queen a sweet smooch while taking the stage with Simon Cowell, Will Smith, Michael Jordan, Cruise and O'Donnell.
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