Fall Out Boy are teasing another celebrity cameo for their newest video "Champion" that is coming out tomrrow at midnight. Guess who it is?

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It's Jaden Smith! The band posted this teaser video to Twitter earlier today. 

"Champion" is turning out to be a star-studded song across the board, from the vizualizer filmed at The Berrics with special appearances from Post Malone, Russian skater Sewa Kroetkov and some llamas, to the song itself, which credits pop icon Sia as a writer and composer, along with the rest of the band. And now, Jaden Smith is joining the party for the official music video. We hope he's not allergic to llamas. 

Do you think Fall Out Boy have any more surprises up their sleaves? Sound off in the comments below! 

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