Sonny Curtis died Friday, his wife of more than a half-century, Louise Curtis, confirmed to The Associated Press.

Meanwhile, the legacy of The Mary Tyler Moore Show — with its iconic theme song that Curtis wrote — carries on to this day.

Sonny Curtis, the legendary songwriter behind “I Fought the Law” and the Mary Tyler Moore Show theme, has died at 88 after a sudden illness.

Sonny Curtis, who wrote the hit "I Fought the Law," as well as the theme song to "The Mary Tyler Moore Show," has died.