Stupid new "iTunes DJ" who replaced "Party Shuffle" has a bad attitude when you try to listen to songs he's already got "queued up to spin" as the kids would say
Of course that's only if you "Add to iTunesDJ" because then you might not really want to actually play the songs you just said you wanted to play. If you pick, "Play next in" or "Play in" then the DJ knows you're serious and doesn't ask questions.
I understand building the DJ functionality on top of the existing playlist functionality, but I can only assume that Party Shuffle was the same thing with a different name, and therefore this is a big time annoying regression in the new release. Go go gadget testing.