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 indie folk songwriter Sufjan Stevens. His fifth studio album, Illinois features songs referencing places, events, and persons related to the U.S. state of Illinois. The album 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 gag.
Stevens recorded the album using low-fidelity methods and a variety of instruments between late 2004 and early 2005 at multiple venues in New York City, where he also produced the album. The artwork and lyrics explore the history, culture, art, and geography of the state—Stevens developed them after analyzing criminal, literary, and historical documents. Following a July 4, 2005, release date, Stevens promoted Illinois with a world tour.
Critics praised the album for its well-written lyrics and complex orchestrations; in particular, reviewers noted Stevens' progress as a songwriter since the release of Michigan. Illinois was named the best-reviewed album of 2005 by review aggregator