28. Constantine Maroulis

Net worth: $750,000

Constantine Maroulis placed sixth on season four of "American Idol." Maroulis had been part of a touring production of "Rent" before doing the show, and he returned to his musical theater roots after his run ended. He has starred in Broadway productions of "The Best Little Whorehouse in Texas" (2006), "The Wedding Singer" (2006), "Jekyll & Hyde" (2013) and "Rock of Ages" (2009-10 and 2014). Maroulis then returned to music, most recently releasing the album "Until I'm Wanted" in 2020. He'll be starring in the show "Foreigner's Journey," with performances throughout the Northeast through 2022.

27. Lauren Alaina

Net worth: $800,000

Lauren Alaina finished second to Scotty McCreery on season 10 of "American Idol," but she's become a successful country star despite the loss. Her albums "Wildflower" and "Road Less Traveled" reached No. 2 and No. 3, respectively, on the Billboard Top Country Albums chart, and her song "What Ifs" reached No. 1 on the Hot Country Songs chart. Alaina was nominated for the 2017 CMA New Artist of the Year award and received the CMT Music Award for Breakthrough Video of the Year. She currently is on tour throughout the U.S., including several dates at the Grand Ole Opry.

At this rate, it won't be long before she's one of the richest country stars.

26. Ace Young

Net worth: $1 million

Ace Young placed seventh on "American Idol" season five, and though his singing career fizzled after the show, he has found success as a songwriter. Young earned a Grammy nomination for writing the song "It's Not Over" for fellow "Idol" alum Chris Daughtry. He also appeared on Broadway in "Grease" (2008-2009) and "Hair" (2010). In 2013 he married Diana DeGarmo, the "Idol" runner-up in season three.

25. Tamyra Gray

Net worth: $1 million

Tamyra Gray placed fourth on season one of "American Idol" and has become a star on Broadway since the show ended. Gray performed in "Bombay Dreams" from 2004 to 2005, in "Rent" in 2007 and in "Once on this Island" in 2018. She also lends her talents to television, most recently appearing on an episode of "All Rise" in 2020 and "The Rookie" in 2021.

24. Taylor Hicks

Net worth: $1 million

Taylor Hicks was the "American Idol" winner in 2006 during the show's fifth season. His debut single, "Do I Make You Proud," reached No. 1 on the Billboard Hot 100 chart, and he has had two albums on the Billboard Hot 200 chart. Hicks performed Las Vegas residencies in 2012 and 2013. In 2017, he released his first single in seven years, "Six Strings and Diamond Rings." Still performing, he has several shows slated for spring and summer 2022.

23. Fantasia Barrino

Net worth: $1 million

Season three winner Fantasia Barrino has been nominated for 12 Grammys and has won one. She performed at the 2019 Grammys as part of an Aretha Franklin tribute and has released six full-length albums, including a Christmas album in 2017. She currently hosts "Taylor Talks" with husband Kendall Taylor weekly on Facebook and Instagram, and she will be performing live several times this summer.

22. Bo Bice

Net worth: $1.5 million

Bo Bice lost to Carrie Underwood during season four of "American Idol," but his music career continued. Bice released four albums and was the lead singer for Blood Sweat & Tears from 2013 to 2018. He also has appeared in commercials for Moe's Southwest Grill and Ford Motor Co.

21. Diana DeGarmo

Net worth: $1.5 million

Diana DeGarmo was runner-up on season three of the show and used her exposure to launch a successful singing and acting career. Her single "Dreams" reached No. 14 on the Billboard Hot 100 chart, and she has starred on Broadway in "Hairspray" (2006) and "Hair" (2010). DeGarmo also starred as Dorothy in the first national tour of "Oz." She released an EP, "Gemini," in September 2017 and released the album "Gemini" in 2019.

20. James Durbin

Net worth: $1.5 million

Singer, songwriter and guitarist James Durbin placed fourth on the 10th season of "American Idol." After the show, he continued to tour alongside major musical acts such as Buckcherry, Evanescence, Drowning Pool and Steel Panther, as well as his own headlining shows. In March 2017, Durbin replaced Seann Nicols as the lead singer of Quiet Riot. He released the album "Homeland" in 2018 and "The Beast Awakens" in 2021.

19. Haley Reinhart

Net worth: $1.5 million

Haley Reinhart appeared on season 10 of "Idol" and came in third place. In 2012, her debut album titled "Listen Up!" reached No. 17 on the Billboard Hot 200 chart. In 2015, her single "Can't Help Falling in Love" hit No. 11 on Spotify's global viral chart and amassed over 57 million streams on the platform, according to her website. Reinhart's latest album "Lo-Fi Soul" was released in 2019, followed by the single "Roll the Dice" in 2021.

18. Phillip Phillips

Net worth: $1.5 million

Phillip Phillips won "American Idol" in season 11, but it wasn't smooth sailing from there. In January 2015, Phillips sued the show's production company, stating the contracts he had to sign were "oppressive" and that he was manipulated into taking jobs he did not want. During the lawsuit, which wasn't settled until 2017, Phillips could not record new music. Once the lawsuit was behind him, Phillips released his third album, "Collateral," in January 2018. He debuted his latest single "Love Like That" in 2022(64).

17. Josh Gracin

Net worth: $2 million

U.S. Marine Josh Gracin placed fourth on the second season of "American Idol" and continued to make music after completing his military service. His self-titled debut album was certified gold by the Recording Industry Association of America in 2005, and he released two more full albums and a six-track EP, "Nothin' Like Us, Pt. 1," in 2017.

16. Mandisa

Net worth: $3 million

Mandisa finished in ninth place during season five of "American Idol" and was infamously mocked by judge Simon Cowell about her weight during her time on the show. But the singer put that mocking in the past and has earned five Grammy nominations, winning once since getting voted off. Her latest album, "Overcomer: The Greatest Hits," was released in 2020, and her new book "Out of the Dark" hit shelves in March 2022.

15. Ruben Studdard

Net worth: $3 million

Ruben Studdard, aka "The Velvet Teddy Bear," beat out Clay Aiken to win the second season of "American Idol." Studdard has released seven albums. His most recent album, "Ruben Sings Luther," a tribute to Luther Vandross, was released in 2018. He is currently on tour in support of the album.

14. Kris Allen

Net worth: $3.5 million

Kris Allen beat Adam Lambert to take first place on season eight of "Idol." After his win, Allen put out four pop-heavy albums, but a car accident in 2012 nearly derailed his musical career. Fortunately, he was able to relearn how to play the guitar and released his fifth album, "Letting You In," in 2016. He also released a Christmas album that year. He debuted his most recent album "10" in 2019.

13. Scotty McCreery

Net worth: $4 million

Country star Scotty McCreery got his start on "American Idol," winning Season 10. His debut album, "Clear as Day," is certified platinum by the Recording Industry Association of America, and he's had nine songs on Billboard's Hot 100 chart, most recently including the single, "Damn Straight." He released his latest album "Same Truck" in 2021, and is currently on a North American tour.

12. Clay Aiken

Net worth: $4 million

Clay Aiken was the runner-up on season two of the show, and while he continued to pursue singing for a decade after it ended, he later switched gears in an attempt to start a political career. In 2014, he ran for Congress, and though he did not win the race in his home state of North Carolina, he's currently running again. Aiken also has worked as a host for Bold TV.

11. David Archuleta

Net worth: $5 million

At just 16, David Archuleta advanced to the season seven finale and ultimately became the runner-up. His debut single, "Crush," reached No. 2 on the Billboard Hot 100 chart, and his debut self-titled album was certified gold. Archuleta has pursued acting in addition to music, and he starred in a Filipino TV series called "Nandito Ako" in 2012. Archuleta released his latest album "Therapy Sessions" in 2020.

10. David Cook

Net worth: $5 million

Singer-songwriter David Cook auditioned for "American Idol" on a whim and ended up winning season seven. He has put out three full albums, and he released his latest EP, "The Looking Glass," in April 2021. Cook briefly starred in Broadway's "Kinky Boots" in 2018. He debuted a new single "TABOS" in April 2022.

9. Elliott Yamin

Net worth: $6 million

Elliott Yamin finished season five of "American Idol" in third place, and the show catapulted him from pharmacy-counter clerk to famous singer. He has released seven albums and performed with the funk band Philthy. Yamin will join the Special EFX Allstars tour on select dates in 2022.

8. Kellie Pickler

Net worth: $7 million

Kellie Pickler placed fifth on season five of "American Idol," but despite not making it to the finals after making it into the "American Idol" top 10, she's used her "Idol" fame to launch a wide-ranging career. Pickler has released four albums, won the mirror ball trophy on "Dancing With the Stars," voiced an animated character in the "VeggieTales" movie, launched a home goods line and starred in a CMT reality series. She also co-hosted the daytime talk show "Pickler & Ben" on CMT from 2017-2019 and has starred in several TV movies, most recently including "The Mistletoe Secret" and "Wedding at Graceland."

7. Chris Daughtry

Net worth: $8 million

Chris Daughtry ended in fourth place on "American Idol" during season five and went on to become a successful rock musician. He formed the band Daughtry, and its debut self-titled album became the fastest-selling rock album in Soundscan history, Rolling Stone reported. Daughtry has been nominated for four Grammys, and three of the band's albums have reached platinum or gold status. Currently on tour, the band is performing throughout the U.S. and internationally in 2022. Outside of his rock career, Daughtry starred as Judas in the TV movie "The Passion" and was a voice actor in the animated movie "Trollz."

6. Jordin Sparks

Net worth: $8 million

Jordin Sparks was only 17 when she won season six of "American Idol," making her the youngest winner in the show's history. Her debut single, "No Air," sold 4 million digital copies, Forbes reported. Sparks went on to release three full albums and had three top 10 hits on the Billboard Hot 100 chart. She also has dabbled in acting. Most recently, she released several singles in 2020, including "Homebody" and starred in the 2021 Hallmark Channel movie "A Christmas Treasure."

5. Katharine McPhee

Net worth: $14 million

Since finishing in second place in season five of "American Idol," Katharine McPhee has gained success in the singing and acting worlds. On the music front, she's released six albums and has had three singles on the Billboard Hot 100 chart. McPhee also has appeared on television and in film, with roles in "The House Bunny" and "Community," and starring roles in "Smash," "Scorpion" and most recently the Netflix series "Country Comfort." She also starred in the West End production of "Waitress."

4. Jennifer Hudson

Net worth: $30 million

Jennifer Hudson's "American Idol" run ended arguably prematurely -- she finished in seventh place on season three. Her early ouster shocked fans, but Hudson bounced back quickly and now is one of the most successful people to have appeared on the show. Hudson won an Academy Award for best supporting actress for "Dreamgirls" in 2007 and has won two Grammys. Three of her albums have been in the top 10 on the Billboard Hot 200 chart. Her latest single, "Christmas (Baby Please Come Home)," was released in 2021. She also joined "The Voice" for Season 13 as a judge.

3. Adam Lambert

Net worth: $30 million

Adam Lambert's glam-rock style made him stand out on season eight of "American Idol," despite his runner-up finish. After the show, Lambert released his first album, "For Your Entertainment," which was certified gold and featured the single "Whataya Want From Me," which earned him a Grammy nomination. His sophomore album, "Trespassing," went straight to No. 1 on the charts and sold 77,000 copies in its first week, Entertainment Weekly reported. And he hasn't slowed down since. Lambert wrapped up a Las Vegas residency with legendary rock band Queen in 2018, released the album "Live Around the World" with the group in 2020 -- he also released the solo album "Velvet" the same year -- and will tour internationally with the rockers this summer.

2. Kelly Clarkson

Net worth: $45 million

In 2002, Kelly Clarkson won the first season of "American Idol," and her star has continued to rise since. Her singles "A Moment Like This," "My Life Would Suck Without You" and "Stronger (What Doesn't Kill You)" have reached No. 1 on the charts. Even though "Idol" put her on the map, Clarkson currently serves as a judge on competitor show "The Voice" and has helmed daytime talk show "The Kelly Clarkson Show" since 2019." She released her latest album, "When Christmas Comes Around..." in 2021.

1. Carrie Underwood

Net worth: $140 million

Carrie Underwood earned the title of "American Idol" during season four of the show. The win launched her country-pop career and has made her one of the richest country music stars. Since Underwood's victory on "Idol," she has racked up eight Grammy wins, sold 66 million records worldwide and has had 14 No. 1 songs on the Billboard Hot Country Songs chart. She also has launched her own line of activewear, Calia by Carrie Underwood. Underwood released her latest album, "My Savior" in 2021 and currently has the Las Vegas residency "Carrie Underwood: Reflection."

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This article originally appeared on GOBankingRates.com: Carrie Underwood Is #1 of the 34 Most Successful ‘American Idol’ Contestants