I agree with Oldbag.
I've used the following songs in class:
We danced by Brad Paisley. The pace is slow and the words clear.
There goes my life by Kenny Chesney.
Love me tender by Elvis Presley.
The lion sleeps tonight. Just don't listen to it more than twice a day or you'll never get the sound oit of your ears.
Slower Beatles songs such as In my life and Yesterday.
Look up Linda Ronstadt and Norah Jones songs. The Carpenters.
Killing me softly by Roberta Flack (not other singers)
You can usually find related songs listed by youtube. Look for ones with lyrics.
Certainly, even handpicked songs cannot teach English in a systematic way. And you do have to watch out for things such as nonstandard usages.
Last but not least, Conjunction Junction and A noun's a person place or thing by Schoolhouse Rock! There are also songs about adjectives, verbs, etc by Schoolhouse Rock. And you might wanna watch these two just because they are classics:
How a bill becomes a law and, better, The Preamble