Simplest Way to search mp3 at Google

1) Just type your favourite songs or artist
example : Usher - Daddy's Home
2) Type "site:" followed by file hosting website
example : Site:mediafire.com

Combine the word like below...

===================================
Usher - Daddy's Home Site:mediafire.com
===================================


or

you can only put the song's title followed by hosting website like below..

===================================
Daddy's Home Site:mediafire.com
===================================

List of favourite file hosting website:
- 4shared
- mediafire
- megaupload
- rapidshare
- hotfile
and many more....