1Kelly Clarkson: THEN
Getty ImagesRemember this fresh face? At just 20 years old, she (and her chunky blonde highlights) went on to win the first season of American Idol.
2Kelly Clarkson: NOW
NBC//Getty ImagesSince her success on Idol, Kelly has released more than nine studio albums and embarked on many headlining tours. She also hosts The Kelly Clarkson Show on NBC and is a coach on The Voice.
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3Justin Guarini: THEN
Getty ImagesAmerican Idol's first-ever runner-up performed so well during the competition, even notoriously harsh judge Simon Cowell praised the 23-year-old singer, telling him, "Justin, you know, occasionally you're very privileged when you do a competition like this to hear somebody undiscovered who has a voice like yours."
4Justin Guarini: NOW
Getty ImagesThough he's chopped his signature hair, Justin still has the same great big smile. While his career didn't take off quite like Kelly Clarkson's, the singer has performed for large audiences on Broadway in theatrical roles in Rent, Romeo and Juliet, Chicago, and more.
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5Ruben Studdard: THEN
Getty ImagesNicknamed the "Velvet Teddy Bear," the season two winner impressed judges and audiences alike with his beautiful renditions of songs like John Lennon's "Imagine" and Diane Warren's "Music of My Heart."
6Ruben Studdard: NOW
Paras Griffin//Getty ImagesAfter dropping an impressive 119 pounds on season fifteen of The Biggest Loser, the singer has continued to release albums and perform for crowds nationwide.
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7Clay Aiken: THEN
Getty ImagesBack in 2003, the 24-year-old left the American Idol judges speechless with his incredible voice, earning him the runner-up spot on season two.
8Clay Aiken: NOW
Getty ImagesSwapping a career onstage for one at the podium, Clay is now in politics. In 2014, he ran as the Democratic Party's candidate for North Carolina's 2nd congressional district, but lost. In 2022, he announced his plan to run again for congress.
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9Jennifer Hudson: THEN
Getty ImagesThe 23-year-old's untimely exit as the seventh runner-up on Idol's third season shocked audiences back in 2004.
10Jennifer Hudson: NOW
Jason Kempin//Getty ImagesNow, Jennifer's one of Idol's most successful contestants ever, having won an Oscar and Golden Globe for her 2006 performance in Dreamgirls. She's also inspired millions as the spokeswoman for Weight Watchers and was a coach on The Voice on seasons thirteen and fifteen.
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11Carrie Underwood: THEN
Getty ImagesRocking big curls and funky dresses, the 22-year-old won the fourth season of Idol.
12Carrie Underwood: NOW
Jason Kempin//Getty ImagesCarrie has since racked up countless Grammys, Billboard Music Awards, and American Music Awards. She's currently preparing for her upcoming Las Vegas residency.
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13Chris Daughtry: THEN
Getty ImagesComing in fourth place, the singer achieved acclaim for his hard rock performances throughout the show's fifth season.
14Chris Daughtry: NOW
Mickey Bernal//Getty ImagesThe rocker's band, Daughtry, was nominated for a Grammy for Best Rock Song in 2008, and he's continued to tour and release new music ever since. He also made his acting debut on the 100th episode of CSI: New York in 2008.
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15Katharine McPhee: THEN
Getty ImagesSeason five's runner-up, Katharine McPhee, endeared audiences with her cute outfits and big voice.
16Katharine McPhee: NOW
Axelle/Bauer-Griffin//Getty ImagesPursuing a passion for acting and music, Katharine has gone on to appear in movies like The House Bunny and shows like Smash. She also starred on Broadway in Waitress.
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17Jordin Sparks: THEN
Getty ImagesAt just 17, American Idol's youngest winner ever rocked cute babydoll dresses, while belting out powerful performances.
18Jordin Sparks: NOW
Bryan Steffy//Getty ImagesThe singer has adopted a more mature style to go with her many accomplishments, which include winning an American Music Award in 2008 and being nominated for a Grammy in 2009. She's also taken up acting in recent years, appearing in A Christmas Treasure in 2021.
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19Adam Lambert: THEN
Getty ImagesAppearing on the eighth season of American Idol, Adam wowed audiences with his skilled tenor voice and huge vocal range.
20Adam Lambert: NOW
Jo Hale//Getty ImagesAdam has been touring with legendary rock band Queen since 2014. In addition to his many sold out shows, Adam was also nominated for a Grammy Award for Best Male Vocal Performance in 2011 and received an Honorary GLAAD Media Award in 2013.

Sam's enthusiasm for makeup is only rivaled by their love of all things relating to cats. In their spare time, they enjoy watching scary movies, putting avocado on everything, and seeing how many shades of the rainbow they can dye their hair before 30.
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