Ladies and gentlemen, god bless America - land of the free, home of the brave.

There's a reason why the Foo Fighters don't blast out Nirvana songs every night: because we have a lot of respect for them. You know, that's hallowed ground. We have to be careful. We have to tread lightly. We have talked about it before, but the opportunity hasn't really come up, or it just hasn't felt right.

When digital technology started becoming the norm, you've got 50, 60, 70 years of recordings on tapes that are just deteriorating. Like, a two-inch reel of recording tape won't last forever. It dissolves. It will disappear.

Different boards do different things to the sound that's coming through them. An old Neve desk does embellish it in a way that makes it sound sort of bigger or warmer. It doesn't change the performance but it does enhance the way that it sounds.

I think the producers or whoever's doing the show are tripping so hard. They must be on acid. They live in this, like, weird grass mound and there's this 'sun' in the sky with this little baby's face that's just, like, bleaaargh-aarghagh. It's just so totally insane. It's such an acid thing, man. For kids!

I'd love it if everyone knew one Foo Fighters song.

The thing that will never go away is that connection you make with a band or a song where you're moved by the fact that it's real people making music. You make that human connection with a song like 'Let It Be' or 'Long and Winding Road' or a song like 'Bohemian Rhapsody' or 'Roxanne,' any of those songs. They sound like people making music.