“The Piano Guys are an American musical group consisting of pianist Jon Schmidt, cellist Steven Sharp Nelson, videographer Paul Anderson, and music producer Al van der Beek,” as Wikipedia reports. “They gained popularity through YouTube, where in 2010 they began posting piano and cello compositions combining classical, contemporary, and rock and roll music, accompanied by professional-quality videos. As of August 2018 the group had surpassed 1.6 billion views on their YouTube channel and had 6.2 million subscribers. To date, they have topped the Billboard Classical Albums chart six times and the New Age Albums chart eight times.”