Rocker Dan Reynolds broke his hand in May (13) after punching a drum kit.
The Imagine Dragons frontman was wrapping up a gig when the accident happened, and he was left sporting a protective cast after shattering two bones.
He tells Bbc's Newsbeat, "Eight weeks ago... it was this moment of, 'Ah, I'm going to punch a drum', and I punched it and it broke my hand - I broke two metacarpals in my hand. I just got the cast off recently.
"It's a big concert drum - you would think that when the adrenaline's pumping you can just be like, 'Wham!' and it be fine but I punched it and my hand was like a gummy worm afterwards. It was the last song so I tried to wave goodbye and my hand was a little limp."
The teaser promises plenty of scares when 'IT' hits theatres later this year.