Dolly Parton joins Blondie and Suzanne Vega at Glastonbury . . . but will Prince be there as well?

Nine to Five looks set to become the Glastonbury Festival singalong this year after country music star Dolly Parton confirmed she will be swapping her cowboy boots for wellies and heading on down to Worthy Farm. Fans will have their Stetsons at the ready after Emily Eavis and Jolene singer Dolly both announced the news. Neither said when and where she would be playing, but the country icon is widely predicted to be appearing on the Sunday afternoon "legends" slot on the Pyramid stage. Last year country king Kenny Rogers went down a storm when he sang their duet Islands in the Stream on Sunday, following in the footsteps of Don MClean, Johnny Cash, Brian Wilson, Neil Diamond, Sir Tom Jones and Dame Shirley Bassey. Speaking to BBC 6 Music at Wednesday night's NME Awards, Emily Eavis said the singer had confirmed the "amazing news" earlier that day. "We're really, really excited because it's been something we've been wanting to happen for a long time. And she finally said yes. It's one of those rare things where someone like Dolly is in the country at the same time as Glastonbury, and we're really, really excited about this. Hopefully Kenny put in a good word," she added. Dolly Parton later broke the news to her three million Twitter Followers. "I'm incredibly excited to FINALLY announce that the #BlueSmokeWorldTour is coming to @GlastoFest on June 29th! ;) Stay tuned for more info…" she wrote. The Western Daily Press first reported that Parton was free over the Glastonbury weekend in the middle of her European tour last October. The Daily Press also tipped Blondie as a possible Glastonbury act and Debbie Harry confirmed the news at the NME awards too. "We just heard today – we're going to be doing Glastonbury!" Debbie said after the band picked up the Godlike Genius award at this year's NME ceremony. Blondie previously performed at the festival in 1999. Arcade Fire have confirmed they are 2014's Friday night headliners and Lily Allen, Warpaint and Suzanne Vega have also let slip that they have signed for the three-day event, which takes place in Somerset between June 25 and 29. But the Eavis father and daughter are still staying tightlipped about persistent rumours that Prince will finally headline on the Saturday night.