We knew that YouTube Music Key would start rolling out this week, and it looks like it's in full force at this point. A bunch of us here at AP already have it, and from the look of our tip box, most of you do as well. If not, well, I'm sorry. Here's a quick look at what you're missing.
As expected, we've got offline playback (you can choose to save the videos in 360p or 720p), background playback, and ad-free music videos.