As it turns out, the guy who was standing next to me in the 'fenced off' section in the middle of the tent at Rufus's concert on Rock Werchter? Was taping the concert.
Click to view
Those LOUD annoying 'whooooo's? Pretty much all mine. (and so is the laughter you hear at 00:46 or something)
My dad sent me the link with the title: "Can't that annoying bitch shut up?" And he knew it was me. I'm so embarrassed.