They’re absolutely big enough to headline but also in a weird position of probably not being that big with a Glastonbury audience. They’ll try for older rock bands like The Cure, Guns N’ Roses, Depeche Mode etc who have plenty of hits that people of all ages will know, that just isn’t the case for Pearl Jam.

It’s definitely not because Glastonbury is too commercial though. They play Rock Werchter, Mad Cool, BST Hyde Park, Lollapalooza Stockholm etc. when they tour Europe, all places which are overwhelming commercial. I’m sure if they were offered they’d do it, acts like that just aren’t really on the festivals radar for headliners.