Phil Everly, the younger half of the Everly Brothers, died in Burbank, California on Friday. His wife, Patti, told the Los Angeles Times that the cause was chronic obstructive pulmonary disease. During the late '50s and early '60s, Phil and his older brother, Don, produced dozens of hits, including "Wake Up Little Susie," "Bye Bye Love," "Cathy’s Clown," "All I Have to Do Is Dream" and "When Will I Be Loved?," most of which you have probably heard, even if you don't realize it. Their harmonies were cited as influences by the Beatles, Linda Ronstadt, Simon and Garfunkel, and, later Green Day and Bonnie "Prince" Billie, among many, many others. The duo broke up onstage in 1973 and reunited ten years later, making two more albums before becoming mostly estranged again. Phil is the one on the left in this video of them performing "All I Have to Do Is Dream."