mus1c14n: First official @AcapellaApp shirt collab with some christmas spirit! Thank you @jecissalynn @ChrissyMBE @TheSingingMixer for joining! #barbershoptag #barbershop #singing #vocal #voice #santahat #christmas #acapella #acapellaapp #acapellashirt #collab #joinmycollab #acapellaappisthebest #acashirt