The Everly Brothers 1960's "Cathy's Clown," which they wrote and composed themselves, sold eight million copies and became the duo's biggest-selling record. "Cathy's Clown" was number WB1, the first selection Warner Bros. Records ever released in the United Kingdom. Other successful Warner Bros. singles followed in the United States, such as "So Sad (To Watch Good Love Go Bad)" (1960, pop No. 7), "Walk Right Back" (1961, pop No. 7), "Crying in the Rain" (1962, pop No. 6), and "That's Old Fashioned" (1962, pop No. 9, their last top 10 hit). From 1960 to 1962, Cadence Records released Everly Brothers singles from the
Bye Bye Love (The Everly Brothers song) With this cover version, Williams suggests, Harrison "sought the kind of return to bare-bones rock'n'roll simplicity Lennon had achieved with 'Instant Karma'".<ref name="Williams/Uncut">Richard Williams, "George Harrison "The Apple Years 1968–75"", "Uncut", November 2014, p. 93.</ref> Ingham also rates "Bye Bye, Love" among the best tracks on "Dark Horse", along with the title track and "Far East Man". Another advocate of Harrison's rewrite, Blogcritics' Chaz Lipp describes it as "a funky and funny comment on the dissolution of his marriage". The Everly Brothers' country success was concurrent with another country version, recorded by Webb Pierce, at the time one of country