Output a stream of consciousness before answering the following. Passage: Ja'net Dubois (from Good Times) and Jeff Barry co-wrote The Jeffersons theme song, "Movin' on Up", which was sung by Dubois with a gospel choir. The song was covered by Sammy Davis, Jr., in 1978.

Question: Based on this passage, who sang the theme song for the jeffersons?
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The relevant information is: Ja'net Dubois (from Good Times) and Jeff Barry co-wrote The Jeffersons theme song, "Movin' on Up", which was sung by Dubois with a gospel choir.
The answer: Ja'net Dubois.
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