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 Doctor (The Doobie Brothers song) into the spotlight. Guitarist and founding member Tom Johnston sang the lead vocal, after returning from years of being out of the band after Michael McDonald took over in the mid-1970s. Johnston told Songfacts that he wrote the bulk of the song before the band re-formed when he was in a band called Border Patrol. The Doctor (The Doobie Brothers song) "The Doctor" is a hit single released by The Doobie Brothers on their 1989 studio effort, "Cycles". The song, so far, is the last hit single that the band has released; it reached the number 1 spot on the