Do You Want Somebody To Love Mp3 How Can I Save And Convert A Video From Youtube To Mp3?

How can I save and convert a video from Youtube to mp3? - do you want somebody to love mp3

I have a song I dislike coupple available for download, but rarely covered in the live shows. I'm trying to see if there is no way I could save the song from the videos? Is it possible to extract and convert? Can someone help me? Thank you!