Jennifer Holliday, who originated the role of Effie White in the original Dreamgirls production on Broadway and won a Tony for her work, joins Jennifer Hudson -- who won an Oscar for the same role in the 2006 film adaptation -- for an incredible duet of 'And I'm Telling You I'm Not Going' on Hudson's talk show. The pair previously performed the song together way back in 2007, at the BET Awards.
