 
<translate> Mee ka uche gị dịrị n'ihe ị na-ekwu tupu ị zaa ajụjụ ndị a. Passage: Ja'net Dubois (site na Good Times) na Jeff Barry dere abụ isiokwu The Jeffersons, "Movin' on Up", nke Dubois na ndị ukwe gospel bụrụ. Sammy Davis, Jr., dere abụ ahụ na 1978.  Ajụjụ: Dabere n'ihe e kwuru n'amaokwu a, ònye bụ onye bụrụ abụ e ji mara ezinụlọ Jefferson? <eng> 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? 