Live 8 Crazies

My daughter has decided that since both Pink Floyd and what remains of the Sex Pistols will be playing at Live 8 the date that we arrive in London (July 2nd) that we must, MUST, MUST go there.

Not sure how to scam tickets for a concert that happens several hours after we arrive, without paying eight gazillion dollars (or, in this case, eight gazillion pounds) but any and all advice will gratefully be taken so I can attain true godliness in her eyes.