J.D. Souther, the celebrated songwriter known for his collaborations with The Eagles, passed away at the age of 78 on September 17 in New Mexico, just before he was set to begin a solo tour. The Eagles honored Souther with a heartfelt tribute, recognizing him as a 'brother, friend, and brilliant collaborator' who significantly contributed to the Southern California sound of the 1970s. Souther co-wrote some of the band's biggest hits, including 'New Kid In Town,' 'Heartache Tonight,' and 'Best Of My Love,' and was also a notable figure in the songwriting community, often assisting fellow musicians like Don Henley and Linda Ronstadt. The tribute described Souther as smart, talented, and humorous, with a deep appreciation for various music genres. His legacy continues to resonate through the many artists he influenced and worked with throughout his career. The Eagles expressed their condolences to his family, friends, and fans, emphasizing that he will be greatly missed.