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Imagine Dragons are coming back swinging with a brand new song called "Warriors." 

The band unveiled the surprise track on Facebook Wednesday along with an online gaming-themed animated video.  They explain that they took a break from working on their new album to collaborate with the team behind one of their favorite games, "League of Legends." 

But Imagine Dragons have promised fans that their still hard at work on the follow-up to their smash debut, 2012's Night Visions.

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