Today they've followed that up with an entirely re-imagined version of another 'Trench' track 'Cut My Lip'.
The re-imagined version of 'Cut My Lip' is worlds apart from the original, and it's only that the end that you realise that it was recorded live, in front of an audience.
The release of 'Chlorine' last month was accompaied by a set of coordinates which pointed to a square in Mexico City - and today's addition of 'Cut My Lip' similarly has coordinates for a location in Brooklyn, New York.
This re-imagined version of 'Cut My Lip' appears to be from the performance that frontman Tyler Joseph gave last week for Radio.com's Storyteller series. Which makes sense for the coordinates, given that the session was recorded live in Brooklyn.
Check out the re-imagined version of Twenty One Pilots' 'Cut My Lip' below:
Need more Twenty One Pilots in your life? Pick up your 'Trench' Ultimate Fan Pack below, featuring all three Rock Sound cover variants and posters: