jim arrington? that's the one.ngton holds the guinness world record as the oldest professional bodybuilder in the world. announcer: mr. arrington is celebrating-- johnny bananas: look at this guy. announcer: --his 82nd birthday. oh my god. johnny bananas: 86. i know. crowd: (singing) happy birthday to you. oh my gosh. yeah. yeah. see, my only problem with him, i don't think we'd be good together because he'd be at the gym all day. johnny bananas (voiceover): after being captivated by a bodybuilding magazine at the age of 13, jim has been training ever since. oh, so he's been doing it his whole life. since he was 13. so being a bodybuilder is about having a more complete physique. - right. shouldn't have wore that crop top. i think i went heavy on the carbs the night before, so i had a little-- hannah berner: you're regretting. a little bloat. a little bit of a buddha belly. the most important thing you have to have are your abs. how's mine? oh, that's good. no, don't flatter me. did you spray paint that? no, but i