What you *could* do maybe is take a fun, catchy song by Switchfoot or Relient K or someone like that, which still conveys the message but in a way that will keep people's attention. Because, unfortunately, the slow worship-y music seems to only be appealing to those who already know Christ personally. Other people (even "young" Christians, I've noticed) tend to zone out a little bit and then you haven't accomplished what you were trying to do.
You could try "My Way or the Highway" by Relient K. Or you could do something Lifehouse. But anyways..."the rest is up to you"