The Everly Brothers were arguably the most influential vocal duo in music history. Songs like "Bye Bye Love" and "Wake Up Little Susie" remain a shared memory for generations of listeners who were hooked by their deceptively simple harmonies that hid greater meaning in songs that were dark and new compared with the pop music of the day. There was a heavy outpouring on social media following Phil Everly's death, proving The Everly Brothers remain relevant a half-century after their first hits.