Here is the LINK! :))))
It is until April 1, 2012. Answer now though! :D
The KPOP and Culture Fest, last February 16, posted this:
So you really count. 607 people saying that they're going to the concert are not enough force to bring them here. Please join us, I know you love INFINITE.
I've been replaying this music video from their Second Invasion concert for about 100 times already, I think. I just love it, simply love it. I am already picturing that I'm gonna see this performance LIVE right before my eyes if ever the concert will push through.