android how to play a music of any extension from an url through MediaPlayer

I have an app where I want to play a music from an url. Means in edittext which music url i will give it will play by click on a button.

I am trying 开发者_高级运维to using ,

mediaPlayer.setDataSource("http://sixpackedgeek.com/leech/files/alive.mp3");

but shows exception as below,

**07-18 14:11:21.711: ERROR/AndroidRuntime(300): FATAL EXCEPTION: main

07-18 14:11:21.711: ERROR/AndroidRuntime(300): java.lang.IllegalStateException

07-18 14:11:21.711: ERROR/AndroidRuntime(300):     at android.media.MediaPlayer.setDataSource(Native Method)
** 

What should i use here so that every extension of media file will play? Thank you