Pleasantly plump teenager Tracy Turnblad auditions to be on Baltimore's most popular dance show - The Corny Collins Show - and lands a prime spot. Through her newfound fame, she becomes determined to help her friends and end the racial segregation that has been a staple of the show.

'Pleasantly plump' teenager Tracy Turnblad achieves her dream of becoming a regular on the Corny Collins Dance Show. Now a teen hero, she starts using her fame to speak out for the causes she believes in, most of all integration. In doing so, she earns the wrath of the show's former star, Amber Von Tussle, as well as Amber's manipulative, pro-segregation parents. The rivalry comes to a head as Amber and Tracy vie for the title of Miss Auto Show 1963.