"Rhinestone Cowboy" (1975)
As a kid from Arkansas who now had offers coming over the phone for TV, films (including the John Wayne Western True Grit) and more, Campbell was a natural for this Larry Weiss-penned tune. He took the song's demo with him to Australia, learning it while he cruised the country's highways from gig to gig, thanks to an airline strike. A pop Number One, the biggest country hit of 1975, and the ACM and CMA Song of the Year, the only dark spot on its legacy was as the genesis of the 1984 bomb Rhinestone, starring Dolly Parton and Sylvester Stallone. In the end, it stands as Campbell's signature song.