The country music legend will be in the UK for her 'Blue Smoke World Tour' in June but has no dates scheduled for the 29, when the world's largest music festival takes place on Worthy Farm, Somerset.
The 'Jolene' singer, 67, will play the Sunday night 'legends' spot, according to The Sun. However, the singer is yet to officially respond to the rumours.
In November, Dolly voiced an interest in recording a duet with her goddaughter Miley Cyrus, in an interview with the Evening Standard. Which makes us wonder if the pair could ever pair up on the Pyramid stage?
Dolly had nothing but kind words about the 'Wrecking Ball' singer and said although she has advised Miley at times, she "would never dream of" inserting herself in her career moves unsolicited.
“I’ve loved her through the years and watched her grow up, and I’ve seen how smart she is and how talented she is," Dolly said. "I don’t think people really realise yet what a great singer and writer she really is. She’s just trying to find her own place and wings and learn to fly."