Stars come out to say goodbye to Oprah Winfrey

CHICAGO -- Oprah Winfrey wiped away tears as celebrity after celebrity surprised her during a farewell double-episode taping of "The Oprah Winfrey Show" that will precede her finale.

"Thank you is not enough, but thank you," Winfrey told the crowd of 13,000 gathered at Chicago's United Center on Tuesday night for "Surprise Oprah! A Farewell Spectacular." "For your love and your support, thank you."