Lyrics Training looks like a neat new website using music and lyrics to help people learn English. You can read more information about it at The English Blog.
The big problem, however, is that it appears they only use YouTube videos, which pretty much makes it inaccessible to most schools in the United States (since most content filters block YouTube). Because of that, I won't be it on The Best Music Websites For Learning English.
Too bad they don't "rebrand" their videos like some other websites so they can be accessible.