Music is a great way to improve your listening skills. I recommend avoiding slow songs because the words of the lyrics are extended making it difficult to understand. The words of really fast songs are rushed and equally difficult to understand. Find something with a moderate beat, or tempo. Some of my students like to listen to rap music because it helps with understanding the rhythm of words. I like Whitney Houston because she sang with a clear voice every time. Check out this video of her song, One Moment in Time.