Has anybody gotten last-minute tickets for lollapalooza?

I know that sometimes, tickets for concerts or festivals cost less around a week before the actual concert. Since I have around two months before the festival, I was wondering when should I officially get tickets?.

I was gonna go to summer smash, but it's a little too late. I feel bad about it because I was contemplating it for a while. But since I have more time until lolla, I was wondering if I could still get tickets? I have a job lined up, so I can save some money.