American Idol Live at Allstate Arena

Thia Megia performs during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Jacob Lusk performs during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Paul McDonald performs during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Scotty McCreery, center, performs with the American Idol cast during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Scotty McCreery, left, performs with (from left) Lauren Alaina, James Durbin, Casey Abrams, and Paul McDonald during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011  (Andrew A. Nelles/ For The Chicago Tribune)

Scotty McCreery performs during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Scotty McCreery performs with Lauren Alaina during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Scotty McCreery performs during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Fans react during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Fans hold up signs for Scotty McCreery during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011  (Andrew A. Nelles/ For The Chicago Tribune)

Naima Adedapo, center, performs with Stefano Langone, left, Jacob Lusk, second from right, and Thia Megia, right, during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

James Durbin, left, performs with Pia Toscano, center, and Casey Abrams, right, during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Haley Reinhart performs with Casey Abrams, left, and Paul McDonald, right, during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune))

Haley Reinhart performs during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Haley Reinhart performs during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Lauren Alaina performs with Scotty McCreery, left, and Pia Toscano, right, during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Lauren Alaina performs with Scotty McCreery, left, and James Durbin, right, during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Lauren Alaina performs during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)

Lauren Alaina performs during American Idol Live at the Allstate Arena in Rosemont, Ill., on Saturday, August 6, 2011.  (Andrew A. Nelles/ For The Chicago Tribune)