Hairspray Live! college sophomore Maddie Baillio, as her first professional role. In November 2016, it was announced that Ricki Lake and Marissa Jaret Winokur (who portrayed Tracy Turnblad in the 1988 film and the Broadway version respectively) would make cameo appearances; Winokur and Lake appeared as employees of Mr. Pinky's boutique. Darren Criss served as an on-air host, hosting a half-hour "Countdown to Hairspray Live!" show on NBC with Kristin Chenoweth and Sean Hayes, as well as behind-the-scenes reports throughout the live broadcast. Oreo, Reddi-wip, and Toyota broadcast live, themed commercials during "Hairspray Live!"; Oreo's ad featured the character of Corny Collins,
Ricki and the Flash for the guests. Her son and his bride start the wedding dance and slowly the guests join in. Diablo Cody based the script in part on her mother-in-law Terry Cieri, who has fronted a New Jersey bar band for years. Cody said, "I watched her on stage so many times, and I thought to myself, 'This woman's life is a movie.' Cody specifically wrote the role of Ricki with Streep in her mind noting that actresses over 50 in Hollywood typically don't get complicated parts. Streep's costar is played by her real life daughter, Mamie Gummer marking the third film