Could you class Green Day as Rock and Roll?

I'm not sure what exactly 'rock and roll' is.. But in our music class we have to play a rock and roll song on the guitar/keyboard or whatever. I only know Green Day and MCR songs properly. So could you class Green Day as rock and roll? At all?|||Green Day is Pop Punk


Pop Punk is a sub-genre of Punk


Punk is a sub-genre of Rock and Roll





so technically yes|||No. Green Day's pop punk. And MCR isn't either.





This is rock 'n' roll : http://www.youtube.com/watch?v=6py6hKjKw鈥?/a>|||it is slightly more pop punk but i'm sure you can get away with it, i mean classics like basket case or welcome t paradise even minority will always get fists in the air so go for it|||I never classified them as "Rock and Roll" I think of them as more "Punk Rock", but most people beg to differ.|||Pop punk dude. Their old stuff was great, but i hope their new stuff sounds a little more like their old stuff.|||More like pop punk|||It's more pop punk. ;p