Watch Pentatonix's amazing new Christmas a capella video

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.

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 ...

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• Watch Pentatonix perform a spine-tingling version of Jolene with Dolly Parton and Miley Cyrus 

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.