Watch Dolly Parton answering questions at Glastonbury

Speaking to reporters before her headline act on the Pyramid Stage in 2014, Dolly Parton described her excitement at performing at Glastonbury. "I can't believe I've never done this before," she said. "I'm excited about it." She revealed she'd even written a song about Glastonbury's muddy conditions. To play this video you need to enable JavaScript in your browser.This video can not be played