We do Sound & Lighting, and as a sound engineer it is imposible to sync the video and what people are doing perfectly to playback. I recently just got back from one of pinks concerts (see vids on my profile) and I can assure you it is not playback. there are DI Boxes running everywhere for the guitars and the drum kits are fully mic'd up. oh and the 72CH Mixer desk at at the back.
This song cant help but make you feel a thousand different feelings & moments