The venerable Delbert McClinton is a legend among Texas roots music aficionados, not only for his amazing longevity, but for his ability to combine country, blues, soul, and rock & roll as if there were no distinctions between any of them in the best time-honored Texas tradition.
~Steve Huey (allmusic.com)
John David Souther (commonly abbreviated as JD Souther) is an American musician, singer-songwriter, and actor. He has written and co-written numerous hits songs recorded by artists such as Linda Ronstadt and Glenn Frey of the Eagles.
He is one of the greatest songwriters in the so called west coast rock, country rock wave of the 70s. He is mainly known for other peoples interpretations of his songs.
Lyle Pearce Lovett (born November 1, 1957) is an American singer-songwriter and actor. Active since 1980, he has recorded thirteen albums and released 21 singles to date, including his highest entry, the number 10 chart hit on the U.S. Billboard Hot Country Songs chart, “Cowboy Man”. Lovett has won four Grammy Awards, including Best Male Country Vocal Performance and Best Country Album. (- Wikipedia)
Somehow you can tell the difference when a song is written just to get on the radio and when what someone does is their whole life. That comes through in Bob Dylan, Paul Simon, Willie Nelson. There is no separating their life from their music.
