It doesn't say I don't know.
It says somebody that knows how marketing campaigns and ROI work has showed me the sales figures, but I don't understand how the magic trick they did works.
What about Kings of Leon for the ???? slot? They are in Cardiff on the Sunday so would have to be Fri or Sat but could they be one of The Other headliners? Weirdly don’t have a feel for how popular they are - maybe too big for The Other?