Not only is Dolly Parton a force of nature in Nashville, but a hugely prolific songwriter with more than 100 million album sales, a movie star ("the quintessential … whatever it is," 9 to 5 costar Lily Tomlin told Rolling Stone), a multi-Grammy winner and Oscar nominee, a sometime traditionalist (as part of the millions-selling Trio with Emmylou Harris and Linda Ronstadt) and hero to countless artists country and otherwise. That includes Whitney Houston, whose biggest hit was once Parton's. "I think Dolly Parton is a hell of a writer and a hell of a singer," Houston said in 1993. "I was so concerned when I sang ["I Will Always Love You"], how she'd feel about it, in terms of the arrangement, my licks, my flavor. When she said she was floored, that meant so much to me."