MediaPlayer Service Android

I am new to Android. I am creating service for Media Player so that it can continue to play song even if i close the application. I have created activity for Media Player and it is having all the functionality like play , pause , next , previous , seekbar and also includes oncompletionlistener . All works excellent. But Now i want that all should be managed by service.

I have Created MyService Class :

public class MyService extends Service {

    public static MediaPlayer mp;

    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void onCreate() {
        mp = new MediaPlayer();     
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {  
        return START_STICKY;
    }

But in my player activity i have created ArrayList for Songlist from which i am taking currentsongIndex and through it i am maintaining all the functionality like next , previous and all.. Now in service how do i get songlist which is also required in my activity ?? Where should i create MediaPlayer object mean in service or activity ??

for MediaPlayer I have reffered http://www.androidhive.info/2012/03/android-building-audio-player-tutorial/ . For my media player code you can refer this site. Thanks. Pleaze clear my doubt. I am so confused. Reply me soon..