LOS ANGELES -- Vocal powerhouses Jennifer Hudson and Ariana Grande will end NBC's 。 Hairspray Live!。 with a duet. 。

The news was announced during a press junket for the televised musical on Wednesday. The show, filmed on the Universal lot, airs live on Wednesday Dec. 7 on NBC. 。

Hudson and Grande, who play Motormouth Maybelle and Penny, respectively, will sing "Come So Far (Got So Far To Go)." 。

SEE ALSO:Musical theatre geek Ariana Grande joins NBC's 'Hairspray Live' 。

SEE ALSO:Musical theatre geek Ariana Grande joins NBC's 'Hairspray Live'
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The song was originally sung by Queen Latifah in the 2007 film.。The uplifting musical comedy delves into the issues of racial segregation in Baltimore in the 1960s, a storyline which director Kenny Leon ( 。The Wiz Live)。

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Newcomer Maddie Baillio, from Texas, has been tapped to play the lead role of Tracy Turnblad.。

Other cast members include Kristin Chenoweth (Velma Von Tussle), Martin Short (Wilbur Turnblad), Harvey Fierstein (Edna Turnblad; he is also one of the show's writers), Derek Hough (Corny Collins), Sean Hayes (Mr. Pinkie) and Rosie O’Donnell (gym teacher).。 At a press junket on Wednesday, NBC chairman Bob Greenblatt also announced that Chenoweth and Hayes will host a live pre-show ahead of the actual musical.。 The two co-starred in Broadway musical。

The two co-starred in Broadway musical。

Promises, Promises
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together in 2010. The pre-show will feature behind-the-scenes footage ahead of the big night. 。NBC is also partnering up with affiliates in five cities -- Baltimore, Houston, Atlanta, Salt Lake City and Philadelphia -- to have local viewing parties which will be featured during the show.
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