Mid 1970s: A star is born
Parton is a real-life rhinestone in the rough, with nine number one singles in the U.S. country charts throughout the 1970s -- including hits "Jolene" in 1973, and "I Will Always Love You" in 1974.
Meanwhile, Harry and guitarist Chris Stein were busy founding the band which would catapult them to stardom -- Blondie. They released their first self-titled album in 1976.
"Both women are responsible for some of the most popular songs ever," said Stubbs. "Dolly's 'I Will Always Love You' was a massive hit for Whitney Houston. And Blondie's 'One Way or Another' was recently covered by One Direction."
Mid 1980s: Dollywood and down time
During the 80s, Parton continued to branch into the film industry, earning a Golden Globe nomination for "Best Actress" in the 1982 musical "The Best Little Whorehouse in Texas," starring alongside Burt Reynolds.
Two years later she received a star on the Hollywood Walk of Fame. Not content just to add her name to Tinseltown's streets, Parton created her own version in 1986 -- "Dollywood" -- a theme park in the Smoky Mountains where she grew up.
For Harry, the 1980s were a more difficult decade.
Blondie broke up after their sixth album in 1982, and Harry took a few years off to care for partner and band member Chris Stein, who was diagnosed with an autoimmune disease of the skin.
1990s: Bigger and better
Parton continued to build her entertainment empire with her part-owned production company -- Sandollar -- which was behind successful TV series "Buffy the Vampire Slayer" and film "Father of the Bride."
That's not to say she had been ignoring her roots. In 1999 Parton was inducted into the Country Music Hall of Fame. It was a bright new decade for Harry too.
In 1997 Blondie reformed after a 15-year hiatus, coming back with a bang. Their new single "Maria" became the band's sixth UK number one hit -- making them the first American group to have chart-topping British singles in three decades -- the 1970s, 1980s, and 1990s.
2014: Glastonbury glamor
In the international music festival circuit, there are few bigger events than Glastonbury. And when 175,000 people descend on those muddy English fields this summer, there will be two headline acts on everyone's lips.
"Glastonbury has gone beyond a music festival -- it's a national institution," explained Stubbs. "The line-up is dissected by fans, the ticket sale is an event in itself.
"People like it because it feels like a kind of utopia," he said of the event that includes big budget art installations and has featured everyone from U2 to Beyonce.
Who will be crowned queen of Glastonbury? Stubbs had a hot tip: "Michael Eavis, the founder of Glastonbury, told me the act he's most looking forward to seeing is Dolly."
We'll let you make up your own mind.