Permission

I wrote to Universal asking permission to use the song 'Protect Ya Neck (the jump off)' by Wu Tang Clan.
Copyright is important in the music industry to protect song's against theft.
One of the reasons to do this is to make sure that the royalties get to the right people and the original artist does not loose money.

This is a definition of copyright: from the website 'wikipedia'
''Copyright is a set of exclusive rights granted to the author or creator of an original work, including the right to copy, distribute and adapt the work.''