We have shared videos from the great Pentatonix before, and this is just latest acapella cover song. This time it's Lorde's big hit "Royals". 

We're pretty sure we could watch these guys for hours. If they did an acapella version of any song we would sit there and watch it.

Lorde's original is awesome, but how cool is it to see people with no instruments other then their voices pull off a performance like this?

Original version: