Dolly Parton insists she will still be wearing her high heels in the mud at Glastonbury this week.

The '9 to 5' hitmaker, who is performing at the festival at Worthy Farm in Somerset, is adamant she won't be buying any wellies despite heavy rain predicted for the event and will stick to wearing sky-high shoes.

She said: ''What should I expect? Mud? I'll be wearing my high heels, even if I'm up to my knees in mud. I'm a little bit apprehensive. I'm excited, I just want to make sure I do the right show. I've heard of Glastonbury because it's one of the biggest in the world, right?''

The 68-year-old star claims fans have asked her for ''years'' if she would play the festival and she's never been featured on the bill until now and is still working out her set list for the event.

She said: ''I guess it's never worked out where I could, and so now I am.

''I've heard that people from all walks of life come to Glastonbury. I guess they smoke a lot of dope and drink a lot of booze, like most festivals, right? But then there's a lot of people that don't, they just come to listen to music. Who cares, as long as they're having a good time?''

The gates at Worthy Farm opened this morning (25.06.14) and the festival headliners this year are Metallica, Arcade Fire and Kasabian.