Dolly Parton claims her voice is ''not fake''.

The 68-year-old singer has spoken out after claims she mimed during her Glastonbury performance on Sunday night (29.06.14) and insists she did sing live at the event at Worthy Farm in South East England.

She told The Sun newspaper: ''My boobs are fake, my hair's fake but what is real is my voice and my heart.''

Newsreader Kay Burley took to Twitter after Dolly's set to suggest the '9 to 5' singer was miming.

She tweeted: ''Oh, Dolly is miming. How disappointing.''

The comment was re-tweeted hundreds of times and fans including comedian Stephen Fry jumped to her defence, claiming it was a ''HD live processor issue''.

A spokesman for Dolly also slammed the comments about her miming.

They told The Sun: ''It's ridiculous to suggest Dolly was miming. She's been performing for more than 60 years - she doesn't need to.

''This should not overshadow what was truly a great gig and accomplished performance. Dolly adored every single moment.''

Meanwhile, Dolly - who performed her energetic set in front of more than 200,000 adoring fans clad in a white suit covered in rhinestones - had received a surprise award prior to her set.

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