MIAMI GARDENS, Fla. – Maisie Williams, better known as Arya Stark in Game of Thrones, will be singing “Let It Go” from Walt Disney’s movie “Frozen” during a Super Bowl LIV ad for Audi on Sunday. The German automaker’s ad for the new e-tron Sportback, a sports utility vehicle, chose the song to deliver the message that consumers need to let go of the past. “Creating a sustainable, livable future for generations to come is the world’s most important challenge," Williams said in a statement. “I’m proud to share Audi’s vision for sustainable mobility.”Sven Schuwirth, Audi’s head of brand for digital business and customer experience, said the 22-year-old actress is the “perfect representative" of how consumers are increasingly advocating for sustainable options. Global partner agency 72andSunny Amsterdam created the ad.