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 additional vocals on the title track of Paul Simon's 1986 album "Graceland". In 1990, Phil recorded a duet with Dutch singer . "On Top of the World" was written and composed by Phil, who appeared in the music video they recorded in Los Angeles. The selection appeared on Shuman's album "Set the Clock on Rock." A 1981 live BBC recording of "All I Have to Do Is Dream", which featured Cliff Richard and Phil sharing vocals, was a UK Top 20 hit in 1994. Phil provided backing vocals on "You Got Gold" from John Prine's 1991 album "The Missing Years."