At the moment the PlayStation 4 doesn’t play CD’s (this function is supposed to be implemented later on), there is also no official YouTube app for the PlayStation 4, but that doesn’t make music videos on your console out of reach.
Vidzone has brought its music video app to the next generation of gaming, but unlike Music Unlimited, it’s completely free. This version of the application, much like the old version, includes interviews, concerts, custom playlists and even some PS4 social features. The app has a feature called “what’s new” which is a feed of your friend’s consoles.
Unless you want all your friends on PSN to know you were listening to Ke$ha for 12 hours straight, I recommend turning that setting off.