I've no idea what they're doing up there... but it looks important, doesn't it?
I'm leaving the build site for the night, and I make my way back to GB for a late-night rehearsal.
Friday night is the big Concert in the Park that James has been working so hard pulling together.
He made fast friends with the Neenah police captain, who spent the better part of the afternoon with us in the media tent going over crowd control details and making lots of calls.
The clock is winding down! One full day left before the reveal!