Saw the Black Keys when they sub headlined in 2014 this is an absolute solid setlist. But yeah this was probably there peak - not at this level anymore - and kicking of about Glasto pay the other year will not have helped there case probably not see them again on the farm.
We can't complain about lip syncing or DJs playing tracks and the act being the hype man, when we're having DJ sets with pre mixed tunes, and Fred stood 'hand syncing' on his mixing board and hyping his own tracks up—and we love it.
You go out to see an act and listen to music. I'd like to see the illusion they're singing parts of it, but you can understand it when Taylor Swift is perfectly in line with the words and then stops to breath and the melody or vocals carry on with zero inflection.
Charli XCX was different though. She was mouthing words that didn't align with the song and you can see that on the big screen and it was bad. At least Eminem you get an illusion he's singing.