Step right up and check out Tim, Keith, Luke and more showing off their flex appeal
Credit: Tim Mosenfelder/Getty
Updated: Friday Nov 01, 2013 | 10:00 AM EDT
By: Katie Kauss
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Arm-y of one McGraw worked hard to get in shape, and it paid off! "People are paying great money to come and watch us, so it's part of my job. I want to enjoy it while I'm out there and feel good doing it," he told PEOPLE.
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