The Google Play Music app lets you listen to your music collection anywhere. This is was made for US only but since this app is not used in other parts of the world, we are now sharing it with you. One of the editor's choice in market.
If you still have stock rom then I'm sure you will want this. Widely used in custom roms today, Upgrade you music player ICS style.
The Google Play Music app lets you listen to your music collection anywhere. All your music is stored online, so no need to worry about syncing or storage space.
* Music purchases from Google Play automatically appear in the app.
* Add up to 20,000 more songs from your personal music collection on your computer for free.
* Access your entire music library instantly with the Google Play Music app, and save your favorites for offline playback.
* Share a free full play of the songs you purchase from Google Play with your friends on Google+.
(Install as normal)
Advanced: Always make backup
(If you want this as default Music Player)
1. Root your phone (see rooting page)
2. Download root explorer
3. DOwnload apk above
4. Open root explorer and move apk to system/app/here
set permissions to rw-r-r