'Nashville' star Clare Bowen shares heart-wrenching childhood cancer story, reveals beautiful new pixie cut

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'Nashville' Star Clare Bowen Chops Off Her Hair to Raise Cancer Awareness

Clare Bowen is changing up her look for a powerful cause.

The Nashville star looks stunning in a new photo shared on her Facebook page, trading in her lengthy blonde locks for a brand new pixie cut. "It's just hair," a tagline on the photo reads.

In her caption, the Australian actress opens up about her own heart-wrenching battle with childhood cancer. Bowen says she was diagnosed with end stage nephroblastoma at four years old and that her family was told "the only hope of saving me, was an experimental treatment that might kill me anyway. But without it I had maybe two weeks left."

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Without detailing her treatment, Bowen says that she lost her hair during that time. "I got to grow up surrounded by children just like me," she wrote. "We were mostly bald, all tubed, taped, bandaged up and stitched back together. We were all missing parts, some obvious like eyes or legs, others more hidden, like lungs and kidneys. Those who still could, tip-toed around like little fairies because chemotherapy had destroyed the muscles in our legs and it hurt to put our heels on the floor. But we were all together, so no one's appearance came into question. No one got laughed at or teased. We were all we knew."

You can read Bowen's full story in the post below.

Wanna know why I cut it all off?When I was four years old, I asked my mother; "Are there heaters in Heaven?" I had...

Posted by Clare Bowen on Wednesday, November 11, 2015

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See potos of Clare Bowen and the "Nashville" cast:

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'Nashville' star Clare Bowen shares heart-wrenching childhood cancer story, reveals beautiful new pixie cut
MORRISTOWN, NJ - OCTOBER 17: Clare Bowen performs at Mayo Performing Arts Center on October 17, 2015 in Morristown, New Jersey. (Photo by Al Pereira/Getty Images)
INDIO, CA - APRIL 25: Clare Bowen performs onstage during day two of 2015 Stagecoach, California's Country Music Festival, at The Empire Polo Club on April 25, 2015 in Indio, California. (Photo by Alli Harvey/WireImage)
NEW YORK, NY - APRIL 29: (L-R) Sam Palladio, Aubrey Peeples, Chris Carmack, Clare Bowen, Maisy Stella, Lennon Stella, and Charles Esten attend the 'Nashville' Tour at The Beacon Theatre on April 29, 2015 in New York City. (Photo by D Dipasupil/Getty Images)
LAS VEGAS, NV - OCTOBER 04: Clare Bowen performs at the Route 91 Harvest country music festival at the MGM Resorts Village on October 4, 2014 in Las Vegas, Nevada. (Photo by Mindy Small/FilmMagic)
NEW YORK, NY - MAY 06: (L-R) Chris Carmack, Jonathan Jackson, Clare Bowen, and Will Chase of 'Nashville' visit the SiriusXM Studios on May 6, 2014 in New York City. (Photo by Taylor Hill/Getty Images)
NEW YORK, NY - MAY 06: Beth Stern (3rd R) poses with (L-R) Chris Carmack, Clare Bowen, Will Chase, Charles Esten, and Jonathan Jackson of 'Nashville' during their visit to 'Extra' at their New York studios at H&M in Times Square on May 6, 2014 in New York City. (Photo by D Dipasupil/Getty Images)
NASHVILLE - 'Guilty Street' - After performing her manifesto song at her Opry induction, major pop labels are vying to sign Juliette, overwhelming Avery, who can barely afford to take her to dinner. Rayna has major money troubles of her own, since Tandy's been bouncing checks around town for Highway 65, affecting Rayna's ability to sign new artists. Deacon finds that life on the road is filled with temptation when he runs into an old friend, Ruth Bennett (Charlotte Ross) at an AA meeting, and Scarlett becomes more enmeshed with Liam, on 'Nashville,' WEDNESDAY, MARCH 5 (10:00-11:00 p.m., ET) on the ABC Television Network. (Photo by Mark Levine/ABC via Getty Images) CLARE BOWEN
NASHVILLE - 'I Don't Wanna Talk About It Now' - Rayna's divorce from Teddy is final as each embarks on a new path that brings them back to some familiar territory. Liam returns to help Rayna complete her album, and Peggy engages in a plan to win Teddy back. Juliette takes a high-paying private gig at a billionaire couple's anniversary party, but she soon discovers her host is interested in more than just her musical abilities. Deacon's troubled past with his own father casts a shadow over his impending relationship with Maddie, and Will and Scarlett undergo makeovers for the Stockholders Showcase, on 'Nashville,' WEDNESDAY, OCTOBER 9 (10:00-11:00 p.m., ET) on the ABC Television Network. (Photo by Mark Levine/ABC via Getty Images) CLARE BOWEN, CONNIE BRITTON
NASHVILLE - ABC's 'Nashville' stars Clare Bowen as Scarlett O'Connor. (Photo by Bob D'Amico/ABC via Getty Images)
NEW YORK, NY - JULY 16: (L-R) Sam Palladio, Clare Bowen attends Self Rocks the Summer Event on July 16, 2013 in New York City. (Photo by Jamie McCarthy/Getty Images for SELF Magazine)
NASHVILLE, TN - MARCH 10: Elvis Costello and Clare Bowen perform at TJ Martell Honors Gala at Hutton Hotel on March 10, 2013 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for TJ Martell Foundation)
BEVERLY HILLS, CA - MARCH 09: (L-R) Actor Charles Esten, Actress Hayden Panettiere, Actress Connie Britton, Actress Clare Bowen, Actor Sam Palladio and Actor Jonathan Jackson attend the 30th Annual PaleyFest: The William S. Paley Television Festival honors Nashville held at Saban Theatre on March 9, 2013 in Beverly Hills, California. (Photo by Jennifer Graylock/FilmMagic)
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Bowen says she was inspired to share her memories -- and cut her hair -- after she heard about "a little girl who said she couldn't be a princess because she didn't have long hair."

"I wanted her, and others like her to know that's not what makes a princess, or a warrior, or a superhero," Bowen continued. "It's not what makes you beautiful either. It's your insides that count... even if you happen to be missing half of them."

Bowen plays fictional country songstress Scarlett O'Connor on Nashville, now in its fourth season on ABC.

WATCH: Will Connie Britton Ever Release Her Own Music?

Earlier this season, the soapy drama featured a special guest appearance from Steven Tyler. But before the show hit the air, the Aerosmith frontman opened up to ET about struggling to learn his lines. See the interview below.

Steven Tyler Says He Uses Teleprompters for His Own Song Lyrics
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