Originally Posted by linkgx1
I'm still lost...
It's a popup notification that you can turn on that shows you the currently playing song in iTunes. When songs change, the popup reappears to show you the new current song.
The good: I already know every song in my library, so I don't really need it to show me what's playing, but it works for iTunes radio stations, too, so that's nice.
One annoyance: It does it for videos, too. I kind of already know what's playing when I open a video.
Goes away in seconds, though, so not a big deal.