I love all the fucking idiots in this thread. Yah, you have to pay(i.e, donate money for a fucking charity) to do volunteer work with John Mayer. No one is saying only do it to win. Most people who enter are probably doing so with no hopes of actually winning, they just feel good donating money and if they win a chance to help more with someone they look up to, awesome!
Seriously, what the hell is wrong with you people?