In 1960s Baltimore, plus-sized teenager Tracy Turnblad possesses an insatiable passion for dancing and dreams of starring on *The Corny Collins Show*, the city's most popular televised teenage dance program. Despite the constant discouragement of her agoraphobic mother, Edna, Tracy audaciously auditions when a spot opens up. Although she is initially rejected by the snobbish producer Velma Von Tussle—who prioritizes rigid
beauty standards and
racial segregation—Tracy charms host Corny Collins with her infectious enthusiasm and earns a coveted place on the show.As a regular dancer, Tracy instantly achieves local celebrity status, using her newfound platform to challenge the status quo. She befriends Seaweed J. Stubbs, a talented Black dancer from the "negro day" segment hosted by his mother, Motormouth Maybelle. Educated by Seaweed and his peers in the vibrant underground dance scene, Tracy becomes deeply motivated to integrate the show. Her blossoming romance with teen heartthrob Link Larkin only intensifies the rivalry with Velma and her spoiled, reigning-champion daughter, Amber, who fear losing their grip on social dominance.The conflict reaches a boiling point when Corny Collins declares a special on-air contest to crown the next Miss Hairspray. Determined to silence Tracy and her progressive agenda, Velma and Amber orchestrate a plan to disqualify her. Meanwhile, racial tensions in the city peak, and Motormouth Maybelle leads a peaceful march toward the television station to demand equal airtime and integration. Police are deployed to block the protesters, resulting in mass arrests, with Tracy and her supporters targeted by authorities.Going into hiding, Tracy refuses to abandon her crusade. With the help of her loving, newly emboldened father, Wilbur, and a disguised Edna—who bravely overcomes her reclusive fears to re-enter society—Tracy formulates a daring plan. On the live broadcast of the Miss Hairspray finale, Tracy bursts past studio security hidden inside a giant hairspray can.Amidst nationwide television audiences, Tracy seizes the microphone to champion integration and unity. Swept up by the electrifying energy of the moment, Corny Collins officially declares Tracy the winner of the contest. Link defiantly rejects Amber to dance alongside Tracy, while Seaweed and Tracy’s best friend, Penny Pingleton, shatter racial barriers with a passionate, televised kiss. Ultimately, Velma’s discriminatory regime collapses, Motormouth Maybelle and the Black dancers claim their rightful place on the screen, and the entire cast and crew unite in a triumphant, joyful celebration of diversity, self-acceptance, and social revolution.