Gram Parsons is one of my favorite musical artists of all time. He played solo, as well as with the Byrds and Flying Burrito Brothers. He called what he did "Cosmic American Music" and it was a sublime combo of country, rock, and 60's psychedelia.
Check it out. His clothes mirrored his music, with an elaborate hippie/country flair, and he's the one who made
Nudie suits so famous.
It's possible to channel Gram just a little bit without looking too over the top. Just look for embroidery, western accents, and bright, bold color.