Past festivals Social_event have featured Christian musicians like TobyMac , Audio Adrenaline , Kutless , Hawk Nelson , Lecrae , Owl City , RunKidRun , BarlowGirl , Salvador , Relient K , Sanctus Real , Newsboys , Jeremy Camp , Falling Up , John Reuben , David Crowder Band , Superchick , Skillet , Five Iron Frenzy , Switchfoot , Jars of Clay , The O.C .