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The Piano Guys on HLN's - Daily Share

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Who would've thought it? One of the biggest stars on YouTube is a group of four dads, from Utah, playing classical music. Yep. They have 3.3 million subscribers. Justin Timberlake YouTube channel: 72,000. Even more impressive is how The Piano Guys turned web stardom into being legitimate music stars, selling out concerts around the world. How'd they do it? Mike Galanos finds out on HLN's - Daily Share.