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NEW YORK (AP) Gleaming abs abound in a new YouTube video about the making of the FDNY's 2014 charity calendar.

The "Calendar of Heroes" video is titled "The Brawn of the Brave."

A driving disco beat thumps in the background as viewers get a behind-the-scenes glimpse of the fashion-style shoot.

Among other things, the activities include bare-chested push-ups.

Several of the pin-up men take a break from their modeling duties to discuss the worthy cause.

Spoiler alert: A spray bottle enables all of that glistening skin.

Proceeds of the calendar benefit the FDNY Foundation.

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Online:

FDNY Calendar video: http://bit.ly/15baGOo

FDNY Foundation Fire Zone: www.fdnyfirezone.org