JD Souther, the celebrated singer-songwriter known for his influential contributions to the music of the 1970s, particularly for the Eagles and Linda Ronstadt, has passed away at the age of 78. Souther's legacy includes timeless hits such as 'New Kid in Town' and 'Heartache Tonight', which he co-wrote for the Eagles. He is remembered not only for his songwriting prowess but also as a cherished collaborator and friend. The music world mourns the loss of a true legend who left behind an indelible mark on rock and country music.