Let's face it Jon isn't the only one in the music industry with a penchant for inflating numbers... the official capacity for hyde park events is licensed at 79,999 - but that's single stage... if the set up was anything like when I went to HRC a few years ago then 48,000 sounds about right for the main stage. Honestly, at those numbers I don't see what huge difference it makes - it's a ridiculously big show. And with all the restrictions that come with playing hyde park getting far more attention than it's due anyway...