 Katrina Kerns – backing vocals on " Concerning the UFO Sighting Near Highland , Illinois " , " Come On ! Feel the Illinoise ! " , " Jacksonville " , " Prairie Fire That Wanders About " , " The Predatory Wasp of the Palisades Is Out to Get Us ! " , " The Seer 's Tower " , " The Tallest Man , the Broadest Shoulders " , and " The Avalanche " 
 Katrina Kerns – backing vocals on " Concerning the UFO Sighting Near Highland , Illinois " , " Come On ! Feel the Illinoise ! " , " Jacksonville " , " Prairie Fire That <a href='uninflect' title='1'><mark>Wanders</mark></a> About " , " The Predatory Wasp of the Palisades <a href='drop_aux' title='2'><mark>Is</mark></a>Out to Get Us ! " , " The Seer <a href='null_genetive' title='3'><mark>'s</mark></a>Tower " , " The Tallest Man , the Broadest Shoulders " , and " The Avalanche " 
Katrina Kerns – backin vocals on " Concerning da UFO Sighting Near southside , Illinois " , " Come On ! Feel the Illinoise ! " , " Jacksonville " , " Prairie Fire dat Wander bout " , " TdaPredatory Wasp of the Palisades Out to Get Us ! " , " Thdaeer  Tower " , " Thedallest Man , the Broadest Shoulders " , and " The Avalanche "