I like it when songs develop in some way. Four minutes usually isn't enough time for something to develop musically.
Our songs did not transcend being R&B hits. They were R&B hits that white kids were attracted to. And if people bought it, it became rock & roll. That's marketing. Why couldn't it still be R&B? The bass pattern didn't change. The song didn't change. It was still 'Yakety Yak' and 'Searchin'.'