Pentatonix gives a stunning performance of an NSYNC Christmas classic
Pentatonix recently took to the stage at the America’s Got Talent Holiday Spectacular to spread some Christmas cheer!
The special episode featured former contestants along with some other special guests.
This year's winner Grace VanderWaal returned to the stage to perform a version of 'Frosty The Snowman'
See the Grammy winning Pentatonix in action in the video above.