Pentatonix's incredible new acapella cover is the most Christmasy yet!

American music group Pentatonix got us right in the mood for Christmas with their latest acapella cover.

The quintet unveiled their harmony-filled music video for What Christmas Means To Me - which has gained more than one million views since it was uploaded.

• READ MORE: Pentatonix has released two new Christmas songs and they will fill you with holiday joy

The catchy Christmas jam was originally performed by the legendary Stevie Wonder in 1967.

Earlier this month Pentatonix released videos for When You Believe featuring singer Maren Morris, as well as Rockin’ Around The Christmas Tree and Where Are You, Christmas?

The singing troop aren't the only ones to cover What Christmas Means To Me this year either ...

• READ MORE: Pentatonix latest Christmas son will absolutely melt your heart

Singer John Legend also released his own version of the song on his new Christmas album A Legendary Christmas.

His music video - taken from his NBC Holiday Special - also features Stevie Wonder and John's wife, Chrissy Teigen.