Illinois (styled Sufjan Stevens Invites You To: Come On Feel the ILLINOISE on the cover; sometimes written as Illinoise) is a 2005 concept album by American singer-songwriter Sufjan Stevens. His fifth studio album, it features songs referencing places, events, and persons related to the U.S. state of lliIllinois Illinois is Stevens' second based on a U.S. state—part of a planned series of fifty that began with the 2003 album Michigan and that Stevens has since acknowledged was a joke.