The Eagles emerged from Laurel Canyon's country-rock scene to soar through the '70s and beyond as one of the biggest-selling bands ever. Vital elements of the Eagles' sound can be found in this playlist: the country-rock of Gram Parsons and his Flying Burrito Brothers, the mellow sounds of Fairport Convention and Nick Drake, the foot-stomping shuffle of the Rolling Stones and Led Zeppelin, heaven-sent harmonies of CSN&Y and Simon & Garfunkel. All these artists elevated the Eagles into the upper echelons of pop music.