Dolly Parton has denied miming at Glastonbury.

The 68-year-old singer - who made her festival debut on the Pyramid Stage on Sunday night (29.06.14) - has been forced to defend herself over claims she failed to sing live during the set.

A spokesperson for Dolly told The Sunday Mirror: ''She sings live. Some people don't know an amazing singer when they hear one.''

The '9 To 5' hitmaker's vocals became the subject of debate following her performance of her hits including 'Islands in the Stream', 'Baby I'm Burning' and 'Jolene' prompting actor Stephen Fry to speak out in her defence.

The 56-year-old wrote on Twitter: ''I think I know quite a lot about how TV is made. Why are people saying @DollyParton is miming? She's fooling me.''

He added: ''Believe me, that is not miming. If it appears not always to lip-sync that's an HD live processor issue. You see it with news reporters.''

Meanwhile, Dolly - who performed her energetic set in front of over 200,000 adoring fans clad in a white suit covered in rhinestones - had received a surprise award prior to her set at the iconic Worthy Farm.

She was presented with a congratulatory plaque by Glastonbury organizer Michael Eavis and her manager Danny Nozell at the Somerset event in honor of selling 100 million albums worldwide.

She said after receiving her award: ''I've been so busy making records for the past several decades, I didn't realize I had racked up so many sales. What a great honor to know that I have so many fans that have supported me through the years.

''Thanks to the RIAA [Recording Industry Association of America] for the acknowledgment and the plaque. I feel very honored and proud.''