1. Click the youtube link to it pulls up youtube
2. Copy the URL of the youtube video
3. Open the website, www.listentoyoutube.com and paste the URL of the video in the designated block
Alternate to step three, click the URL and right after www. type in "listento" without the quotes
DO NOT DELETE THE REST OF THE URL FROM THE VIDEO
4. Then follow the steps shown on the site to download your song
It is a pretty easy process and is just one of the many ways to do it. If you have any questions on how to do it after reading the tutorial comment on this post and I will try to help you.
**DISCLAIMER**
Downloading music without the full rights to that song is illegal, do not download any song from anywhere unless you own the rights. I am not responsible for any law suits against you or any other parties from downloading music from youtube or any other source.