"Mama, I'm a Big Girl Now", a popular number from the stage musical, features Tracy, Penny, and Amber arguing with their respective mothers. Neither Shankman nor Dixon could come up with a solution for filming "Mama" that did not require a three-way split screen — something they wanted to avoid — and both felt the number did not adequately advance the plot. As a result, "Mama" was reluctantly dropped from the film during pre-production, although it is used by Shaiman as an instrumental number when the "Corny Collins" kids dance the "Stricken Chicken". A special version of "Mama" was recorded for the film's end credits in May 2007, during the final score recording process, which featured vocals from each of the three women most famous for portraying Tracy Turnblad: Ricki Lake from the 1988 film, Marissa Jaret Winokur from the original Broadway cast, and Nikki Blonsky from the 2007 film. Harvey Fierstein, who portrayed Edna as part of the original Broadway cast, has a brief cameo moment in the end credits version of "Mama" as well.