what is going on with greenday?

Let's get right to the point. We all know Green Day is bad. I was watching tuesday's Late Show with Conan, and they were the musical guest. As the camera zooms in on them, you can see on the far right of the stage, back the same distance as the drummer, standing next to the amps is a mysterious fifth member of the band! He hides in the back with a microphone and sings along. So, they now require 4 singers and 4 instruments (5 people total) in order to make songs that sound way way worse than the songs they were doing with 3 guys when they started. Interesting.



That's him hiding there. Looks kind of like David Arquette.