Ahead of its next major release in The Secret Life of Pets, Illumination Entertainment–the makers of Despicable Me and Minions–is previewing Sing, the animation studio’s next picture that’s got a remarkable voice cast. Matthew McConaughey, Reese Witherspoon, Seth MacFarlane, Scarlett Johansson, John C. Reilly, Taron Egerton, and Tori Kelly, just to name a few. Together they’ll be singing over 85 hit songs, some of which are included in this first official teaser. A detailed synopsis follows.

Set in a world like ours but entirely inhabited by animals, Sing stars Buster Moon (McConaughey), a dapper Koala who presides over a once-grand theater that has fallen on hard times. Buster is an eternal optimist—okay, maybe a bit of a scoundrel—who loves his theater above all and will do anything to preserve it. Now facing the crumbling of his life’s ambition, he has one final chance to restore his fading jewel to its former glory by producing the world’s greatest singing competition.

Five lead contestants emerge: A mouse (MacFarlane) who croons as smoothly as he cons, a timid teenage elephant (Kelly) with an enormous case of stage fright, an overtaxed mother (Witherspoon) run ragged tending a litter of 25 piglets, a young gangster gorilla (Egerton) looking to break free of his family’s felonies, and a punk-rock porcupine (Johansson) struggling to shed her arrogant boyfriend and go solo. Each animal arrives under Buster’s marquee believing that this is their shot to change the course of their life.

Not unlike its previous efforts, Sing looks like a ton of fun for kids and adults alike. The Garth Jennings (The Hitchhiker’s Guide to the Galaxy) written and directed pic hits theatres in time for the holidays on December 21.