Updated: May 18, 2011 at 9:11 AM

Oprah's "Farewell Spectacular" (20 images)

Dozens of stars and thousands of fans turned out for the taping of "Surprise Oprah! A Farewell Spectacular" at the United Center. Tom Cruise, Tom Hanks, Madonna, and Stevie Wonder were among those who honored the iconic talk show host.

Jamie Fox sings to Oprah Winfrey during the taping of “Surprise Oprah! A Farewell Spectacular” at the United Center in Chicago on May 17. 2011. The show, which featured several surprise celebrity guests, will air over two days, May 23 and 24. Oprah's final show will be a normal episode of "The Oprah Winfrey Show" taped at Harpo Studios and will air on May 25. UPI/David Banks

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Jerry Seinfeld talks to the audience during the taping of “Surprise Oprah! A Farewell Spectacular” at the United Center in Chicago on May 17. 2011. The show, which featured several surprise celebrity guests, will air over two days, May 23 and 24. Oprah's final show will be a normal episode of "The Oprah Winfrey Show" taped at Harpo Studios and will air on May 25. UPI/David Banks

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Halle Berry (L) Katie Holmes (C) and Queen Latifah pay tribute to Oprah Winfrey during the taping of “Surprise Oprah! A Farewell Spectacular” at the United Center in Chicago on May 17. 2011. The show, which featured several surprise celebrity guests, will air over two days, May 23 and 24. Oprah's final show will be a normal episode of "The Oprah Winfrey Show" taped at Harpo Studios and will air on May 25. UPI/David Banks

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Usher performs during the taping of “Surprise Oprah! A Farewell Spectacular” at the United Center in Chicago on May 17. 2011. The show, which featured several surprise celebrity guests, will air over two days, May 23 and 24. Oprah's final show will be a normal episode of "The Oprah Winfrey Show" taped at Harpo Studios and will air on May 25. UPI/David Banks

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