There have been plenty covers done of all of Taylor Swift songs, but this one is most definitely the best of them all. Unique, fun, and talented covers like this one come every blue moon. This a capella version of 'I Knew You Were Trouble' may even give the original a run for its money. 

Get ready for the best thing you will see on the internet all this week. Your mind will be blown by this amazing a capella performance of the new Taylor Swift hit song.

The beat boxing is masterful. The voices are perfectly matched and harmonized. All and all, this video is simply awesome!