While introducing one of the songs, Reese Roper (lead singer) was talking about how the world doesn't get us Christians, and we're rebels in this world. He said, "The world can't handle you! The world can't handle us." Maybe you had to be there. I thought it was rather powerful.
At the end, everyone was screaming for one more song. The other band members vanished, and all but Reese and the bass player had made it back stage. To back up, FIF is crazy, and has a crazy audience. So it goes from this insanity to Reese very quietly saying "Ssh..." A still finally comes over the crowd, and he starts to sing a capella: "Oh Lord...you're beautiful; your face is all I seek; and when your eyes are on this child, your grace abounds to me...Oh Lord, please light the fire that once burned bright in me..." "I love you, Lord, and I lift my voice to worship you; O my soul, rejoice! Take joy, my King, in what you hear; may it be a sweet, sweet sound in your ear..."
There was silence for a long time, and the concert ended. I'd never seen anything like it, and I'm butchering it trying to describe it.
So yeah. FIF is cool. Real cool.