The Everly Brothers rock groups of the 1960s. The Beatles, The Beach Boys, and Simon & Garfunkel developed their early styles by performing Everly songs. The Bee Gees, The Hollies, The Marmalade, and other rock and roll groups that feature harmony singing were also influenced by the Everlys. The music of the Everly Brothers influenced the Beatles, who referred to themselves as "the English Everly Brothers" when Paul McCartney and John Lennon went hitchhiking south to win a talent competition. They based the vocal arrangement of "Please Please Me" on "Cathy's Clown." Keith Richards called Don Everly "one of the finest rhythm players."
The Everly Brothers British Invasion in 1964, their appeal was still strong in Canada, the United Kingdom and Australia. The Everlys remained successful in the UK and Canada for most of the 1960s, reaching the top 40 in the United Kingdom through 1968 and the top 10 in Canada as late as 1967. The 1966 album "Two Yanks in England" was recorded in England with The Hollies, who also wrote and composed many of the album's songs. The Everlys' final US top 40 hit, "Bowling Green," was released in 1967. By the end of the 1960s, the brothers had returned to country rock,