'American Idol' Finale: What Happened to the Donna Summer Tribute?

UPDATED: Gloria Gaynor, Gladys Knight, Thelma Houston and Sheila E. were due to honor the disco queen in song during Wednesday's finale. Some even rehearsed the number.

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Source: http://feed.hollywoodreporter.com/~r/thr/IdolWorship/~3/8MEt_Ra_-5w/american-idol-finale-donna-summer-tribute-329280

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