From Me to You
A true indication of how successful the Beatles became thanks to "From Me to You" (though it would soon be overshadowed by "She Loves You" and "I Want to Hold Your Hand") was expressed by McCartney: "The first time I thought we'd really made it, was when I was lying in bed one morning, and I heard a milkman whistling 'From Me to You'. Actually, I'm sure that I once heard a bird whistling it as well. I swear I did!"