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Carrie Underwood performs at the 2014 American Country Countdown Awards at Music City Center in Nashville on Dec. 15, 2014.
Carrie Underwood, winner of American Idol season 4, performs at the 2014 American Country Countdown Awards at Music City Center in Nashville on Dec. 15, 2014.Jason Merritt—Getty Images
Carrie Underwood performs at the 2014 American Country Countdown Awards at Music City Center in Nashville on Dec. 15, 2014.
Kelly Clarkson performs "Heartbeat Song" onstage during the 2015 iHeartRadio Music Awards at The Shrine Auditorium in Los Angeles on March 29, 2015.
Chris Daughtry performs at Pompano Beach Amphitheatre in Pompano Beach, Fla. on Nov. 12, 2014.
Congressional Candidate Clay Aiken Casts His Vote In The Midterm Elections
7th Annual Mother's Day Music Festival
Ruben Studdard performs at When Georgia Smiled: The Robin McGraw Revelation Foundation And Verizon Unite For Second Annual Domestic Violence Summit at Paramount Studios in Hollywood, Calif. on Oct. 3, 2014.
"FOX & Friends" 2014 Holiday Special
2014 USO Gala: Honoring Those Who Serve
Soles4Souls Presents A Sole-ful Evening, Sponsored By Barefoot Wine & Bubbly
Jennifer Hudson performs at We Day at Allstate Arena in Rosemont, Ill. on April 30, 2015.
Jordin Sparks performs at Jeffrey Sanker's White Party in Palm Springs, Calif. on April 25, 2015.
Phillip Phillips performs at Hard Rock Live! in the Seminole Hard Rock Hotel & Casino in Hollywood, Fla. on Nov. 15, 2014.
KIIS FM's 10th Annual "American Idol" Finale Viewing Party
Adam Lambert is seen onstage at 102.7 KIIS FM's Wango Tango at StubHub Center in Los Angeles on May 9, 2015.
Josh Gracin performs during the 2012 Downtown Hoedown at Comerica Park in Detroit on June 8, 2012.
Taylor Hicks performs at Tony La Russa's 3rd annual Leaders &; Legends Gala at the MGM Grand Hotel/Casino in Las Vegas on Nov. 22, 2014.
Bo Bice performs in concert following the 2012 Colt Ford & Friends Celebrity Golf Classic at Legends Golf Course Club in Braselton, Ga. on Sept. 24, 2012.
Elliott Yamin performs at the Malaria No More Reception With American Idols To Celebrate Recent Progress In The Fight Against Malaria in Washington on March 7, 2012.
NFC Championship - Green Bay Packers v Seattle Seahawks
Diana DeGarmo arrives at the "American Idol" XIII season premiere event held at Royce Hall, UCLA in Westwood, Calif. on Jan. 14, 2014.
Kris Allen performs at the Soles4Souls charity concert, sponsored by Barefoot Wine & Bubbly at the Bridge Building in Nashville on April 1, 2014.
Carrie Underwood, winner of American Idol season 4, performs at the 2014 American Country Countdown Awards at Music City
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Jason Merritt—Getty Images
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May 11, 2015
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