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How four men can play one piano

18 April 2014 Last updated at 10:18 BST

They were first formed to advertise a shop in the States, but when The Piano Guys' videos went viral an internet sensation was born.

The four dads from Utah have now signed a record deal, playing a mix of classical music and pop covers.

However as Al Van Der Beek, Jon Schmidt, Steven Sharp Nelson and Paul Anderson tell BBC Breakfast despite only one of them being a pianist, all four band members can play the piano.

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