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 Delmore Brothers same level of success they had with the Grand Ole Opry. In 1941, their song "When It's Time for the Whippoorwill to Sing" made the "Billboard" "Hillbilly" top three. Their "Freight Train Boogie" (recorded for the King label in 1946) is regarded by some as the first rock and roll record. Their best-known song, "Blues Stay Away From Me" (also on King, 1949), was covered by Johnny Burnette and The Rock and Roll Trio, Gene Vincent and the Blue Caps, The Louvin Brothers, The Browns, Les Paul and Mary Ford, Doc Watson, The Notting Hillbillies and The Everly Brothers. Over