As for Sum 41... I can't really say because I don't listen to their music. But if you like it then it doesn't really matter if they're pop-punk or punk or not.
Here's a quote from Wikipedia you might find useful:
"Most [Sum 41] fans and critics agree that Half Hour of Power and All Killer No Filler were purely pop punk, but Does This Look Infected? started moving toward heavier styles, such as alternative rock and alternative metal,[45] with Chuck being mostly alternative metal. "
|