been missing, oh, boy ♪ ♪ when you're with me, oh, boy >> so, i would listen to buddy holly and gene vincent and jerry leend rollers. ♪ on blue berry hill >> it was like a new language for us. the power of the jukebox, there's nothing quite like it. ♪ my dream came true >> the beatles took a bunch of those strains, the everley brothers from the '50s, a big influence for them with the harmonies. ♪ wake up, little susie, wake up, little susie, wake up ♪ >> so, the beatles in liverpool are taking this pop sound but putting their own spin on it. ♪ >> what is the sound? how does it differ from other rock 'n' roll and pop? >> it just happened that, all of a sudden, hundreds of rock groups all from liverpool made records, and it was a bit more like the original rock 'n' roll than the stuff they've had over the last few months. ♪ >> initially, there was no tradition of great british bands conquering america. that had not happened, but it's that moment where everything turns. ♪ >> there's no single moment that more embodies the moment when rock and roll became the province of teenagers. that's something that you w