Pentatonix - Mary, Did You Know?

"Mary, Did You Know?" is a modern Christmas song with music by Buddy Greene and lyrics by Mark Lowry. It was originally written in 1984 but gained widespread popularity through numerous covers. The version by the a cappella group Pentatonix, released on their 2014 holiday album "That's Christmas to Me," became a massive viral hit. Their intricate vocal arrangement, featuring rich harmonies and beatboxing, showcased the song's emotional depth and helped define the sound of contemporary Christmas music for a new generation.