If you follow A to Z on Twitter (and why not? We turn two years old this week!), you saw that Twitter user @shields121 pointed out that Arcade Fire tickets are already on-sale via the band's website. These are only the general admission floor seats, mind you. However, I just checked and tickets are still available.
In addition to this sale, there is apparently a pre-sale tomorrow at Livenation.com from 10 a.m. to 10 p.m. using the password RFTSTL. (Full disclosure: This perhaps means we have something to do with it, but I have to be honest -- I'm not sure. I saw the ad on our blog like everyone else did. I'm checking around.) Regular tickets, meanwhile, are on sale Saturday, March 5, at 11 a.m. and are $39 each.