Hendrix Ibsen:

A strange situation. No one could have predicted what would happen. They got a record deal after many rejections. No one in the music industry believed in them. Someone said "Love Me Do" needed a different drummer ... The rest is music history.

John, Paul and George were already wanting Ringo on drums and George Martin told them, "For recordings we will use a studio drummer, live you can use Pete." But the other three wanted Ringo and a drummer who they could record with. And that was Ringo.