teaching slang with songs

Hello,
I am looking for extensive information concerning teaching English slang and idioms with music. Generally, I am interested in any articles/books etc. "in defence of teaching slang to ESL students". I am new in this forum and I have spent two hours searching for appropriate information, but, unfortunately, with poor results. Could you advise me some threads to browse in this forum or maybe some literature? I need it to write my BA thesis.
Thank you in advance!:-)