Hollywood publicist Mack Newberry has died, aged 89.

The public relations guru, who represented stars including Dolly Parton, passed away in Florida on Friday (08Aug14). Reports suggest he died of natural causes.

Newberry worked at Los Angeles-based Pr firm Solters Roskin Friedman for more than a decade and worked with stars including Parton, Donny and Marie Osmond, Carol Burnett and John Denver, and he also handled publicity for the Grammy Awards, film premieres and movies including My Girl.