This might not be the latest song, but I like the lyrics very much anyway. It is a song about our obsession with shopping, when we buy things we don't even need just to feel happier. The song contains a lot of money and bank related vocabulary, e.g. loan, mortgage, to be broke, etc. That's why I think it would be better if you used it after you have dealt with this topic. You can use it to revise the vocabulary or to discuss the lyrics.