NOTE: I AM NOT LIABLE WITH ANY LEGAL ISSUES, SUCH AS HOW YOU DOWNLOADED THE SONGS, NOR COPYRIGHTED LAWS.
Step 1: Find the song
(DRM is locked music like you buy from iTunes and CD's....You need to have the file unprotected)
(can can always get free music off of myspace or download.com)
What you do is you drag the music file to your desktop for easy use.
Then download a free audio editor called http://audacity.sourceforge.net/