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5SOS Are Literally Going Bananas For Pete Wentz in This Pic

They love him bunches.

5 Seconds of Summer did way more than make their major network debut on Sunday night at the 2014 Billboard Music Awards.

Watch 5SOS's Kick Some Ass In The Video For "Don't Stop."

Sure, that was epic, but what really blew their minds was meeting one of their all-time musical heroes after the gig: Fall Out Boy bassist Pete Wentz.

But, seriously, what's up with the bananas, Calum?