Between them, they have eight Grammy Awards, an Oscar, a hit TV series, and millions in album sales.
These American Idol girls show you don't have to be a white guy with a guitar to make it big.
Jennifer Hudson, 30
She's the only one with bragging rights about having an Oscar at home.
Receiving the best supporting glory for the movie, Dreamgirls (2006), Hudson has become an A-lister, despite finishing seventh on the third season of American Idol.
She also took home a Grammy in 2008 for her self-titled debut album.
Carrie Underwood, 29
Season four's country winner has the best-selling debut album of any American Idol contestant, selling over seven million copies of Some Hearts.
Thanks to her crossover appeal, she has five Grammy Awards under her belt, winning two immediately post-Idol, including Best New Artist.
Kelly Clarkson, 30
Idol's first-ever winner may have had a decade since her victory to amass over 11 million album sales and take home two Grammy Awards.
But she's been consistently successful, churning out No. 1 hits for each of her five albums, her most recent being last year's single, Stronger.
Katharine McPhee, 28
Her music career has been tepid, though her self-titled debut went to No. 2 on the Billboard 200, but McPhee - who lost out to season five winner Taylor Hicks - is TV's newest star, thanks to her leading role on Smash, a show about the making of a Broadway musical on Marilyn Monroe. It has been picked up for a second season by its network, NBC.
This article was first published in The New Paper.