I listened to them on youtube...I really like their sound. On Sun, Nov 23, 2014 at 7:57 PM, Lynn Ronkainen <ichthys89 at comcast.net> wrote: > wow, just got sent this by a friend... youtube > > http://faithtap.com/2089/pentatonix-mary-did-you-know/ > > Lynn -- Judy Fleener, ObJN Western Michigan