Imagine Dragon's new single "Believer" is a three-minute blast of pummeling drums, gut-busting bass, and one massive, shout-along chorus—so when it came time to film the music video, naturally the Grammy-winning Las Vegas rockers looked to cast a legendary heavy-hitter from the silver screen: Rocky IV pugilist Dolph Lundgren.
Imagine Dragons' third studio album is due out this spring. Watch the video for "Believer" above.