Foo Fighters claim making a set list is "the hardest thing".

Dave Grohl

Dave Grohl

The 'Best of You' hitmakers struggle to decide which tracks to perform when they are on tour because their 20 years together means they have "so many" songs to choose from.

Frontman Dave Grohl explained: "The hardest thing for us is writing a setlist as we have so many f**king songs."

The band - also featuring Taylor Hawkins, Pat Smear, Nate Mendel and Chris Shiflett - are set to headline the Friday night (26.06.15) of Glastonbury Festival later this month, and are particularly excited about their two-and-a-half hour set because it is a "magical" event.

He continued: "When we confirmed that we were playing, people started congratulating us and we were like 'Great' but not really understanding.

"Of course now we do, so it's 'We are f**king headlining Glastonbury. Bring it on' and yes there will be nerves.

"It's such a magical event that so many people come together to experience so many different types of music."

The 46-year-old rocker also gave his opinion on Kanye West after angry fans campaigned against his slot as a headliner, saying he is sure the rapper's performance will be "punk rock" because he is defying the haters.

He told The Sun newspaper: "He could walk out there and have 100,000 people bottle him on stage or he could walk out there and show the world that nothing else matters except for that moment. And I'm sure that is what he will do.

"To me there is nothing more punk rock than having him stand on stage in front of 100,000 people after thousands of people petition for him not to be there."