If you've been around NewPointe much at all, you know that it's not unusual for our band to cover a secular tune from time to time. For instance, recently they've done songs from U2, Los Lonely Boys, and Guns-N-Roses.
Occasionally, but not often, someone will question why we would bring "secular" music into a "sacred" environment. Sometimes the question is, "How am I supposed to worship to music like that?: Here are my thoughts on the subject:
We occasionally play secular music because we are trying to reach both non-Christians as well as Christians in the same service, and playing a secular, popular song up front in the service helps put people who are far from God at ease.
At NewPointe, we think that "Christian people" should be the ones who are the most uncomfortable in church--not the non-Christians. In other words, at NewPointe, we'd rather offend the Christians before offending non-Christians.

Our music selections are not pointless and random. We go to great lengths to make sure everything we do has purpose and relevance. I love the idea of "redeeming" a Guns N' Roses song--using it to ease the tension for someone and help make a connection. I'm sure Guns N' Roses never imagined that their music could pave the way for someone to connect with God...but it sure is cool what God can use to reach people.
Now, I'm not trying to over-spiritualize all this. I know you're not going to be able to "worship" to some of the music we play. But "worship" is not always our intent with every song. We want to make a connection, put people at ease, help them open their minds and their hearts, and let the Holy Spirit do His work.