Some of the most famous pop acts of all time weren't necessarily the greatest singers of all time. Dean Martin once said about himself; "I'm no singer. I can carry a tune, that's all." Not to knock the Beatles, but they were "famous" for vocal flubs. Paul, in particular, had trouble hitting high notes, like in "If I Fell". And "All My Loving" has some painful moments. I guess they figured they were so famous that no one would care. And Simon and Garfunkel sang off-key so often that you wonder if they sang that way on purpose. It makes me appreciate all the more a group like the Association who seemed more like vocal "craftsmen". And I can't recall the Beach Boys missing notes. Carl was out of his range and straining on "Wild Honey" but still hit all the high ones in that song. I don't know, maybe I'm nit-picking, but I think vocal perfection is important.