"Islands in the Stream" would NEVER have been a "country" hit, had it not been covered by Kenny Rogers and Dolly Parton. (In fairness, it probably wouldn't have been a hit for the Bee Gees in 1983, because that was near the height of the anti-Bee Gees backlash.) But it seems that Rogers, especially, was seeking out "crossover" material at the time. A few years earlier, he had covered "Lady," written by Lionel Richie, who himself has been making inroads into country music over the years. "Islands in the Stream" was from the Rogers album Eyes that See in the Dark, as was its followup single "This Woman," which I believe did NOT "cross over." Rogers was probably what a former boss of mine would have referred to as "pop country." Seems like nearly every song on Eyes was a Gibb composition. Interestingly enough, a few years later, after that first "crossover" wave had subsided, Kenny and Dolly covered "Love is Strange," and despite it sounding almost exactly like the original, pop radio never touched it.