Only seconds into the Pentatonix cover of A Great Big World and Christina Aguilera's hit, 'Say Something,' I was covered in chill bumps. If you are a fan of this beautiful melancholic song, it is a must watch.

This powerful rendition of the song, will stop you in your tracks. Once you press play, you won't be able to turn away from the compelling cover.



The Pentatonix are known for their incredible a capella covers of popular songs, and rose to fame through the holiday television series, 'The Sing-Off.'

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