Now a worldwide music sensation, the story of the Piano Guys began in a piano shop in the small town of St. George, Utah. It was there that the store's owner, Paul Anderson, was looking for a way to creatively sell pianos. Local pianist Jon Schmidt, cellist Steven Sharp Nelson and music producer Al van der Beek jumped on board -- and The Piano Guys were born. Their stunning cover versions of songs like One Direction's "What Makes You Beautiful," Taylor Swift's "Love Story," Frozen's "Let It Go" and other popular hits have gotten millions of YouTube views and led to tours that've taken these "four talented dads from Utah" everywhere from the Great Wall of China to Carnegie Hall. They also perform classical favorites, some original tunes and genre-defying mash-ups of artists like Bach and The Jackson 5. See the Piano Guys under the stars at L.A.'s historic Greek Theatre.