Don Felder of the Eagles Double-Neck Electric Guitar, 1977 Gibson EDS-1275 | The Eagles formed in 1971, taking the country rock of the Byrds and the Flying Burrito Brothers a step further toward hard rock. Over the last five decades, the band has sold more than 100 million records, and their album Their Greatest Hits (1971-1975) stands as one of the best-sellers of all time. Eagles guitarist Don Felder played this guitar onstage for both the six-string and twelve-string parts of "Hotel Californi