Dolly Parton’s striking profile has become a pop culture icon, a testament not only to her good looks and the savvy marketing of her “dumb blonde” persona, but also to her success crossing over into mainstream music and films. But if pop hits such as “Here You Go Again” and “9 to 5” made her an icon, it was her steady string of top ten country hits in the ’60s and ’70s that made her a star. Like many country stars, she was ushered out of the firmament during the ’90s resurgence, making way for less talented pretty young things like Shania Twain and Trisha Yearwood, encouraging Parton to return to her trad-country roots. And true to her roots, Parton insisted on keeping ticket prices for her Hello, I’m Dolly tour, coming to the RBC Center on Thursday, Nov. 4, low: $34-54.