The aging acts are the most expensive ones. Probably the only acts they've not managed to lock in on the basis of fee are Fleetwood Mac, AC/DC and likely Madonna.
Obviously not, by all accounts it sounds like we're getting 2 headliners that fall firmly into the "modern and relevant" category. Whether you (or I) personally like them or not is largely irrelevant.
Out of interest, which member of The KLF is under 65?