Green Day went in to rehearse for tomorrow's performance with the musical cast at the Grammy's. The Toronto Sun wrote a short recap about the performance, "The song begins quietly with the young castmembers and the strings, then kicks into gear when a giant wall rises to reveal the band.".

The band also took a few minutes to talk to CNN, and they have short clips of them performing.

We have 25 photos of the band rehearsing today, check them out here.