Photos: American Idol 21 Most Successful Contestants

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

Kelly Clarkson performs "Heartbeat Song" onstage during the 2015 iHeartRadio Music Awards at The Shrine Auditorium in Los Angeles on March 29, 2015.

Kelly Clarkson, season 1 winner, performs "Heartbeat Song" onstage during the 2015 iHeartRadio Music Awards at The Shrine Auditorium in Los Angeles on March 29, 2015.Kevin Mazur—Getty Images

Chris Daughtry performs at Pompano Beach Amphitheatre in Pompano Beach, Fla. on Nov. 12, 2014.

Chris Daughtry, who came in 4th on season 5, performs at Pompano Beach Amphitheatre in Pompano Beach, Fla. on Nov. 12, 2014.Larry Marano—Getty Images

Congressional Candidate Clay Aiken Casts His Vote In The Midterm Elections

Clay Aiken, Democratic candidate for U.S. Congress in North Carolina's Second District, poses for a selfie with supporters after casting his vote in the midterm elections oat Mills Park Elementary School in Cary, N.C. on Nov. 4, 2014. Aiken was runner up on the second season of American Idol.Grant Halverson—Getty Images

Fantasia, winner of season 3, performs at the 7th Annual Music Festival at Boardwalk Hall Arena in Atlantic City, N.J. on May 9, 2015.Donald Kravitz—Getty Images

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.

Ruben Studdard, season 2 winner, 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. Mathew Imaging—WireImage/Getty Images

Scotty McCreery performs during "FOX & Friends" holiday special at FOX Studios in New York City on Dec. 4, 2014. McCreery won season 10 of American Idol.Slaven Vlasic—Getty Images

Kellie Pickler, who came in 6th on season 5, performs at 2014 USO Gala: Honoring Those Who Serve at the Washington Hilton in Washington on Oct. 17, 2014.Paul Morigi—Getty Images

Soles4Souls Presents A Sole-ful Evening, Sponsored By Barefoot Wine & Bubbly

David Cook, season 7 winner, performs at the Soles4Souls charity concert, sponsored by Barefoot Wine & Bubbly at the Bridge Building in Nashville on April 1, 2014.Jason Davis—Getty Images

Jennifer Hudson performs at We Day at Allstate Arena in Rosemont, Ill. on April 30, 2015.

Jennifer Hudson, who came in 7th place on season 3, performs at We Day at Allstate Arena in Rosemont, Ill. on April 30, 2015.Timothy Hiatt—Getty Images

Jordin Sparks performs at Jeffrey Sanker's White Party in Palm Springs, Calif. on April 25, 2015.

Jordin Sparks, winner of season 6 of American Idol, performs at Jeffrey Sanker's White Party in Palm Springs, Calif. on April 25, 2015.Chelsea Lauren—WireImage/Getty Images

Phillip Phillips performs at Hard Rock Live! in the Seminole Hard Rock Hotel & Casino in Hollywood, Fla. on Nov. 15, 2014.

Phillip Phillips, season 11 winner, performs at Hard Rock Live! in the Seminole Hard Rock Hotel & Casino in Hollywood, Fla. on Nov. 15, 2014.Larry Marano—Getty Images

David Archuleta, season 7 runner-up, performs at the KIIS FM's 10th Annual "American Idol" Finale Viewing Party at Regal 14 at LA Live Downtown in Los Angeles on May 25, 2011.Jonathan Leibson—FilmMagic/Getty Images

Adam Lambert is seen onstage at 102.7 KIIS FM's Wango Tango at StubHub Center in Los Angeles on May 9, 2015.

Adam Lambert, season 8 runner-up, is seen onstage at 102.7 KIIS FM's Wango Tango at StubHub Center in Los Angeles on May 9, 2015.Chelsea Lauren—WireImage/Getty Images

Josh Gracin performs during the 2012 Downtown Hoedown at Comerica Park in Detroit on June 8, 2012.

Josh Gracin, who came in 4th place in season 2, performs during the 2012 Downtown Hoedown at Comerica Park in Detroit on June 8, 2012.Paul Warner—Getty Images

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.

Taylor Hicks, winner of season 5, performs at Tony La Russa's 3rd annual Leaders & Legends Gala at the MGM Grand Hotel/Casino in Las Vegas on Nov. 22, 2014.David Becker—Getty Images

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.

Bo Bice, season 4 runner-up, performs in concert following the 2012 Colt Ford & Friends Celebrity Golf Classic at Legends Golf Course Club in Braselton, Ga. on Sept. 24, 2012.Chris McKay—Getty Images

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.

Elliott Yamin, who came in 3rd in season 5, 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.Paul Morigi—Getty Images

NFC Championship - Green Bay Packers v Seattle Seahawks

Katharine McPhee, season 5 runner-up, walks out on the field to sing the national anthem before the 2015 NFC Championship game between the Seattle Seahawks and the Green Bay Packers at CenturyLink Field in Seattle on Jan. 18, 2015.Ronald Martinez—Getty Images

Diana DeGarmo arrives at the "American Idol" XIII season premiere event held at Royce Hall, UCLA in Westwood, Calif. on Jan. 14, 2014.

Diana DeGarmo, season 3 runner-up, arrives at the "American Idol" XIII season premiere event held at Royce Hall, UCLA in Westwood, Calif. on Jan. 14, 2014.Michael Tran—FilmMagic

Kris Allen performs at the Soles4Souls charity concert, sponsored by Barefoot Wine & Bubbly at the Bridge Building in Nashville on April 1, 2014.

Kris Allen, winner of season 8, performs at the Soles4Souls charity concert, sponsored by Barefoot Wine & Bubbly at the Bridge Building in Nashville on April 1, 2014.Jason Davis—Getty Images

See American Idol’s Most Successful Alumni

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