Neil here, from Owngig.com - the site in the above link. Thanks for the mention!
The basic idea of the site is that fans come together and bid for private gigs they want. When the numbers are high enough we talk to the artist management and make it happen.
Just to let you know, if you want to go straight through the site to bid for Pink click here...
This'll take you direct to the Pink page.
If you have any questions about the site, write them below or PM me.
Owngig - changing the face of live music. Your favourite artists, your best price, your own gig!