No doubt he has the people swaying in the aisles in a live setting… Harmless, if not a little bratty, Duff peddles light, rootsy pop, and it works most of the time here on this five-song EP.  Suddenly and Adrenaline are pleasant enough, and no doubt he has the people swaying in the aisles in a live setting. He tries tough on You Can Try, but after the first three songs, its hard to imagine him as wild.  Its about as hard as a puppy.  Lets hope hes singing about an older brother.  No, he seems much more suited to the sweet pathos of 400 Miles and Sigh.  You can…