It may remind us of something or someone in our life. When this happens, we personalize a song. If we examine the lyrics closely we can see that there is more to the song than the beat or melody. We may find that we like something, or someone more than we had realized. Also, by examining the lyrics, we can learn how lyricists express themselves.
All songs have some sort of theme.
You may want to discuss some of the songs your students are familiar with. Ask them to define the theme or meaning of the song. If you have the record or tape with the song, bring it in and play it. We know this could be classified a love song, but the theme is dependency. After a discussion of the song you may want to move on to other possibilities.