Who is present on that Lennon demo of Bad To Me?
It sounds like John is singing harmony with himself, but the lead guitar part doesn't sound like his playing at all.
And the whole arrangement of the song doesn't sound very "John" at all - sounds much more like Paul's work to me.
It's a great song - can't believe they decided to give that away and not record it themselves. It did get to number one in the UK for Billy J Kramer, though, so at least it wasn't lost completely. And it got knocked off the top spot by She Loves You, so it proves that The Beatles had plenty of good material at their disposal at the time so could afford to give away a few decent tunes.