Wednesday 4th June 2014 by Alexandra Pollard | Photos by WENN

7 things Metallica have promised from their Glastonbury set

Lasers and Dolly Parton duets could feature...

"Glastonbury is the biggest, greatest festival on this planet and we're headlining Saturday night. Bring it on. We're going to show up and have fun but all the hoopla is interesting." Radio 1's Rock Show.

"Jay Z came out and played 'Wonderwall', right? So maybe we gotta go out and do our rendition of 'Wonderwall'. We'll start with 'Wonderwall' and we'll take it from there... I usually don't write the setlist before about 15-30 minutes before we go on stage, depending on what the mood is in the camp." The Guardian.

"Playing covers is always a part of what we do. I put covers in almost every night. In terms of collaborations, we'll have to see what we end up doing with that and who else is around. Dolly Parton? Listen, bring it on!" The Guardian.

"Trust your friendly neighbourhood Metallica, we�ll put something suitable together. It's great that, 32 years into our career, we're still able to knock down doors - doors we didn't think were open to us." Zane Lowe.

"We played a new song every night [on tour] in Latin America, and that was a lot of fun. And that�s definitely what we�re planning on doing in Europe." The Guardian.

"As this is a late addition to the schedule, this show will not be a �By Request� night... guess we�ll have to go back to writing the set list ourselves!" Facebook

"We got more into lasers the last few years. Lasers are a lot of fun. Ultimately, it�s just about making a muddy field and 75,000 people feel as intimate as possible." The Guardian.

Tags: Metallica

Did you think no Glastonbury headliner could possibly be more talked about than Jay Z was in 2008? You poor, naive thing.

Since they were announced as the third and final headliner, alongside Arcade Fire and Kasabian, in early May, Metallica have barely been out of the headlines. Bombay Bicycle Club said they were "not a very good booking", Mogwai went a little stronger and described them as "unbelievably bad", whilst Mick Jagger insisted they're going to be "great." There's one thing strangely lacking from all these headlines, though. What do Metallica have to say about all this?

Admittedly, the band have given relatively few interviews since the announcement... but they've still teased enough information about their set that we can let them speak for themselves. Here's everything they've promised, hinted at or pondered upon with regards to their forthcoming headline show. There might be lasers. There might be a Dolly Parton duet. It's all to play for.