Sing stars Matthew McConaughey as Buster Moon, an eternally optimistic koala who puts on the world's greatest singing competition to save his crumbling theater; Reese Witherspoon as Rosita, an overworked and underappreciated mother of 25 piglets desperate to unleash her inner diva; Scarlett Johansson as Ash, a punk rock porcupine with a beautiful voice behind her prickly exterior; and Taron Egerton as Johnny, a young gangster gorilla looking to break free from his family's felonies.
