I have seen this take place. A guy listens to rap and yes has bad words and does promote bad things. This same guy listens to a Christian rap group. Loves it!! Awesome words, awesome beats. Ask most people that listen to rap why they listen to rap and most will tell you for the beats. I like rap beats. I love rock and when I hear Christians songs that are rocking then I think God would rather me take a positive message than a negative one regardless of how the instruments sound. However, for me personally I try to research all the bands I listen to. I read song lyrics, look at websites, etc... Just kind of an accountability thing.