Event attendeers - how to increase them?

Hello,
I want to make an event to look more popular by adding attendeers to it. I know there are Like Facebook services, but have ever someone offered "Going to" service?
I would need 30,000 - 50,000 attendeers. This will bring the competition insane
If someone can bring such service/bot, please reply here.

I would also be interested in this...

I think there's a script for fb events

No one able to offer this?