VIDEO: Jennifer Hudson Belts It Out for New 'Hairspray' Promo!

There are less than two weeks until Hairspray Live! airs on NBC and the latest promo video features Jennifer Hudson‘s ridiculously amazing vocals.

The Oscar-winning actress is seen singing Motormouth Maybelle’s act two song “I Know Where I’ve Been” in the clip.

MEET THE CAST: Find out who is playing who in Hairspray Live!

Some of the other new things that we get to see and hear in the promo include Derek Hough singing “Nicest Kids in Town” as Corny Collins and a super cute mother-daughter moment between Kristin Chenoweth and Dove Cameron as Velma and Amber Von Tussle.