A GREAT BIG WORLD and CHRISTINA AGUILERA's "Say Something" Goes A Capella!

We've all been affected by A Great Big World's emotional, painful song "Say Something" feat. Christina Aguilera, even a four-year old boy sheds tears to this song.

A Capella group Pentatonix recently uploaded their rendition of A Great Big World and Christina Aguilera's hit song, and it sounds even more emotional with a cello on the side and the perfectly blended voices of this group.

The video now has more than 2.7 million views, as of writing.

Watch their cover below:

You can check out the group's official YouTube channel for more of their a capella covers!

What do you think of this a capella cover of "Say Something"? Feel free to leave your comments below!