He wrote ’70s California hits like “Best of My Love” and James Dean."

A few years later, Souther moved to Los Angeles, where his career really took off.

He metGlenn Freyof the Eagles, with whom he began a longtime creative collaboration.

JD Souther attends the Songwriters Hall of Fame 44th Annual Induction and Awards Dinner at the New York Marriott Marquis on June 13, 2013 in New York City.

JD Souther attends the Songwriters Hall of Fame 44th Annual Induction and Awards Dinner on June 13, 2013 in New York City.Gary Gershoff/Getty

He also co-wrote Heartache Tonight" with Frey, Bob Seger, and Don Henley.

Gary Gershoff/Getty

Souther also recorded albums as a solo artist, starting with his self-titled debut in 1972.

The Eagles weren’t the only artists Souther wrote for, either.

He co-wrote James Taylor’s “Her Town Too.”

In addition to music, Souther was also an actor.

He appeared in TV shows likeNashville, Thirtysomething, andPurgatory, as well as movies likePostcards from the EdgeandDeadline.