When I was out shooting this particular festival, everything up until the start of Billie's set was captured up front from the photo pit. There was no problems, there were just the right amount to people with cameras and overall the day was going quite smoothly.
Right up until we tried getting in place for the final set of the day and we were told there was no media access to the photo pit.
Bam! No warning at all. There was no heads up this was happening and worst of all, no way we could have prepared for it by finding a good spot earlier. I had no choice but to head to the back of the crowd, pull out the longest lens I had (my trusty Sigma 70-200mm f/2.8) and hope that I could work some magic.
Thankfully, I managed to get a few 'decent' shots but it could have easily gone the other way. Still, I only need to walk away with one shot for a set to make it worth while and this is the one I liked best.
The photo below is straight from the camera before any photoshop or editing. It might give you an idea of just how far back I was at the time and just how much I had to crop the photo to make it interesting.