When you need permission to use a music recording, you have to get permission from two separate contacts:
Each of these organizations has a database you can search to get the contact information for the music publisher (which is what you need for the song rights) and the label (which is what you need for the master rights.)
We recommend contacting by email or phone first to confirm that they are the right person to ask, and to determine whether they wish to proceed by email or land mail.
If you are using land mail, be sure to enclose a self-addressed, stamped envelope, and send it all by Certified Mail so that you can be sure that it arrived.