Linguistic Reasons
Besides automatization, there is also a linguistic reason for using songs in the classroom. Some songs are excellent examples of colloquial English, that is, the language of informal conversation. A song such as "My Best Was Never Good Enough" by Bruce Springsteen is a prime example of a song that demonstrates colloquial language use. This song is full of phrases like "Every cloud has a silver lining." and "Every dog has his day. " Of course, the majority of language most ESL students will encounter is in fact informal. Using songs can prepare students for the genuine language they will be faced with.
Finally, two studies, Domoney and Harris (1993) and Little (1983) investigated the prevalence of pop music in the lives of EFL students. Both studies found that music is often the major source of English outside of the classroom. The exposure to authentic English is an important factor in promoting language learning. It relates directly to both the affective filter and automaticity. If students are exposed to songs which they enjoy, more learning is likely to occur since they may seek out the music outside of the classroom. The repetitive style of songs then helps to promote automatization of colloquial language.