Runner-up was 16-year-old Lauren Alaina.
McCreery now joins past "American Idol" winners Kelly Clarkson, Ruben Studdard, Fantasia, Carrie Underwood, Taylor Hicks, Jordin Sparks, David Cook, Kris Allen and Lee DeWyze.
Audition cities and dates for Season 11 include St. Louis, MO, on June 28; Portland, OR, on July 2; San Diego, CA, on July 8; Pittsburgh, PA, on July 15; Charleston, SC, on July 22; and Houston, TX, on Aug. 26.
Among the many "American Idol" finalists and/or winners who have appeared on Broadway are Fantasia, Justin Guarini, Jordin Sparks, Diana DeGarmo, Ace Young, Tamyra Gray, Constantine Maroulis, Frenchie Davis, Clay Aiken and Taylor Hicks.
For more information about "American Idol," visit www.americanidol.com.