Baseball player Brian Wilson has a nickname: The Beard. No prizes for guessing how he got it.
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More famed for his moustache than his beard, when he chooses to grow it out Nick's effort is one of the best.
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The Vikings star Travis Fimmel needs the beard for work, but we're fairly sure it's not all about business with this fine piece of facial hair.
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Our own Chris O'Dowd sometimes just verges on scruffy, but when matched with the tight haircut, it looks impressive.
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Not always bearded, but a few Canneseseses ago he showed up with full facial hair, and looked great.
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Xabi Alonso's beard is more well manicured stubble than anything else, but it's always flawless, much like his long-range passing.
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Jon Snow keeps his beard at optimum length for his face: any shorter and it's just scruff, any longer and it looks too thin.
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The original Barry Scott, Mays had a beard for the ages. jet-black, he looked ready to take down a tree at a moment's notice.
Arguably the best beard in football, Pirlo is a class act all the way. He even owns a winery.
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Normally seen as the smooth-faced Don Draper, when Hamm lets the beard grow it's a force to be reckoned with.
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Pittsburgh Steelers defensive end Brett Keisel may have the best beard in sports, it's hard to tell as we're not sure if he's more beard than man.
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Chuck Norris' beard is the only thing tougher than Chuck Norris.
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Zach Galifianakis may well be unrecognisable without his signature beard.
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Another contender from the world of sports, Harden's beard grows down and into a point, which suggests plenty of maintenance is involved too.
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Ireland's UFC star Conor McGregor is not content simply simply to have the beard, he also styles it with some wax, or possibly tonic.
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World Beard Day; The best beards in the business