Jesus did not call us to try to look "cool" and rap/rock/party etc... about the kingdom of God, to try and make His house look appealing, showy or post-modern from the outside. Jesus does not call us to take the limelight. Rather Jesus calls us to the HOLY life. (Which apparently isn't very cool these days) He calls us to make disciples who will ALSO be serious about Him, NOT about music, rap, sport, hobby or our clothing or anything else in this WORLD that we THINK we can use to make God's porch more appealing. There is no such thing. There is only one way and it is the LORD'S way or the highway. Proclaim Jesus Christ from your OWN MOUTH in a serious way and people will listen. Take repentance seriously, take your own relationship with Jesus very seriously and others will see your testimony as genuine and true! But if you mix your so-called "testimony" with cheap gimmicks and tricks, then before you know it, you'll be working for Satan quite effectively, yet believing you're still a good Christian.