Illumination Entertainment’s upcoming animated movie Sing has a pretty stacked voice cast that includes Matthew McConaughey, Reese Witherspoon, Seth MacFarlane, Scarlett Johansson, John C. Reilly, Taron Egerton, Tori Kelly, Nick Kroll, Beck Bennett, Nick Offerman, Jennifer Saunders, Garth Jennings, Peter Serafinowicz, Leslie Jones, and Jay Pharoah.

But those aren’t the only people who lent their voices to the film, which follows a singing competition designed to save a struggling theater. If you look closely during the credits, you’ll see some unexpected names crop up. Specifically, directors Wes Anderson, Edgar Wright, and Chris Renaud (Despicable Me) all lent their voices to the movie. While we’re not sure if they actually did any singing, it wouldn’t surprise me if they did since the audition scene is a huge montage of various animated animals singing snippets of pop songs.

Universal has also released new images highlighting the main cast members, which you can check out below. Sing opens December 21st.

Matthew McConaughey and Buster Moon

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Image via Universal Pictures

“I’ve always regarded Buster as the ultimate creator…a showman who refuses to accept defeat and a guy who will accomplish the impossible through sheer force of will.  Others may see his theater collapsing around him, but not Buster.  Through his eyes, you’ll begin to imagine the crown jewel of this incredible town…a place where people can truly transform.” - Matthew McConaughey

Reese Witherspoon and Rosita

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Image via Universal Pictures

“Ever since she was a girl, Rosita has held on to this tiny part of herself she’s been hesitant to share with the world.  But once she genuinely owns who she is, this shy mom and wife realizes that it would be criminal not to unleash her talents.  In fact, it’s the love and passion Rosita’s given and received that pours out of her when she embraces her inner diva and lets loose.” - Reese Witherspoon

Scarlett Johansson and Ash

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Image via Universal Pictures

“Once Ash understands that all of the attention, effort and energy she’s been giving her worthless boyfriend has been standing in the way of her own musical gifts, she transforms into a badass.  Ash eschews outdated expectations that she should deliver a pop-princess act on the stage and just rocks it out with original music.  I adore her.” - Scarlett Johansson

Seth MacFarlane and Mike

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Image via Universal Pictures

“What I like about this character is that he has zero concept of just how small he is.  Mike is a whirlwind mix of bravado, swagger and showmanship, and he genuinely believes he has nothing to prove.  He needs the contest money because he’s made some very poor decisions, and he’s certain that his larger-than-life personality and stage persona hold the ticket to winning.” - Seth MacFarlane

Tori Kelly and Meena

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Image via Universal Pictures

“I don’t know anyone who doesn’t have a bit of Meena inside. She’s that timid kid who desperately wants to share her gifts with the world, but is always second guessing herself.  As an artist, I went to that place of insecurity inside teenage Tori to find my inner Meena. Then you take a deep breath, shake off the nerves and just let the music take over.” - Tori Kelly

Taron Egerton and Johnny

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Image via Universal Pictures

“I think that one of the biggest fears we all have is that we will disappoint our parents.  All you want is their acceptance, but as you come into your own, you begin to realize that your dreams don’t always intersect with theirs.  Johnny’s relationship with his father epitomizes this.  He only needs Big Daddy to listen, to actually hear him, just once.  If that happens, Johnny believes he can become his own man and really soar.” - Taron Egerton

Nick Kroll and Gunter

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Image via Universal Pictures

“Gunter knows what we all should: Everything is better in a gold track suit.  He is the yin to Rosita’s yang.  If she’s hesitant, insecure and brilliantly talented…then Gunter is the one who’s first to hit the stage and shake his piggy patootie; he’s a legend in his own mind.  When I first experienced Reese and myself as Rosita and Gunter on the screen, I honestly couldn’t stop grinning.” - Nick Kroll