Song parties full? All of them?

For the past hour I've been trying to get in a party but all 6 of them are full? Really? It is the final 2 hours before we get new parties but I've never encountered this before. I don't like it!!
I haven't been able to party much the past couple of days, I was looking forward to it, especially since there's a soundtrack party. At least I'm earning lots of tickets. :-/