Xbox Music is nice and all, but millions of people have millions of hours invested in finely-tuned Pandora playlists. Pandora doesn't have a Windows 8 app, but PRadio is about as good as a replacement gets. While the app’s interface doesn’t look anything like Pandora’s web app, it does provide immediate access to your radio stations (complete with thumbs-up and -down capabilities for further tune tweaking) and Pandora’s massive library of free streaming music.
PRadio behaves exactly as a modern streaming music app should, integrating with the search charm for easy music searching and playing music in the background when you switch to another app. Like all Windows 8 apps, it supports Snap. Snapped mode gives you playback controls at the side of your screen while using other apps.