Green day started in 1988 as a punk band, playing music in the underground punk movement in America. Signed to a major record label and sold millions of albums, which a clean, pop-punk sound which inspired many. Nimrod and Dookie are examles of Green Day's punk music.
With the release of American Idiot in 2004, Green Day have gone away from their roots and their old music. On stage, they now have to have another guitarist who ISN'T ACTUALLY IN THE BAND!!
They're not a 3-piece band anymore, nor are they punk. Boulevard of Broken Dreams is pop with guitars, just like the rasmus
I have seen Green Day live, yes I had a great time, but yes, they have sold out. Bring on the return to punk!
Green Day used to be punk. Now they aint.