I guess if anything, look at popular musicals in English if you want lyrics which are a little more "correct". Pop music tends to use bastardised grammar in order to look cool and trendy, and to get our attention. It's not always the best model for learning English!

Hi Zako, I think listening to songs is not a good choice to learn english. because songs do not observe grammar rules or maybe you will encounter many strange things in songs. Good luck :)