Face it, the Beatles are the best. They popularized the mop-top, they led the British invasion, and they still hold the record for most Number 1 singles of all time (20). Between 1964 and 1970, a Beatles song occupied the No. 1 spot on Billboard charts for a total of 58 weeks. At concerts, the teenage hysterics got so bad that the group couldn't hear themselves play. In 1966, the band couldn't take Beatlemania anymore and decided to stop touring. And then something amazing happened: they released experimental, eclectic albums and turned into rock 'n' roll legends.