Big Sean joins Fall Out Boy for their new music video "The Mighty Fall."

The theme is not quite apocalyptic, but there's a lot of mischievous activity going on as the band squares off against a group of savage teens at night. When Big Sean makes his appearance, he has to fend for himself, killing one of the teens by breaking their neck. Who knew Sean was so hardbody? 

"The Mighty Fall" is included on Fall Out Boy's latest album Save Rock and Roll.

[via XclusivesZone]

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