Nadine Coyle, Cheryl Tweedy, Kimberly Walsh and Nicola Roberts have all voiced their support for the Girls Aloud bandmate Sarah Harding after the singer revealed she has been diagnosed with cancer. 

38-year-old Harding shared the devastating news that she has breast cancer, which has since spread to other parts of her body, in an emotional social media post on Wednesday. 

Harding revealed that she is having weekly chemotherapy sessions and told fans: "I am fighting as hard as I possibly can."

Following the news, Harding's former bandmates, who enjoyed huge success together as part of the chart-topping Girls Aloud after forming on ITV's Popstars: The Rivals in 2002., led the celebrities sending messages of support.

Tweedy shared a broken heart emoji in response to the news, while Walsh said: "My heart is broken. You are so strong and brave and we are with you every step of the way."

Coyle wrote on Instagram: "I love you!!! You have always been able to achieve miracles when needed!! I am here for all the way & always will be!!."

Roberts tweeted: "It goes without saying that this is blindsiding. @SarahNHarding you're so loved and supported."

Steps singer Ian H Watkins also commented on her Instagram post, writing: "Sending HUGE" followed by three red-hearted emojis.

He added: "Stay strong xx We're all behind you xx."

Coronation Street actress Sally Dynevor, who was diagnosed with breast cancer in 2009, said on Loose Women: "My heart goes out to Sarah Harding. It is really difficult to tell people.

"I remember telling my fellow cast members. It was the hardest thing I have ever done. Also having to tell my children, that was really, really hard."

The 57-year-old was diagnosed at the same time as her character on the ITV soap, Sally Webster, also discovered she had the disease.

She added: "The hardest thing for me was that life was imitating art.

Harding has been largely out of the public eye for the last few years, after winning Celebrity Big Brother in 2017, narrowly beating singer Amelia Lily, with Made In Chelsea's Sam Thompson coming in third.

In 2016 Harding made her stage debut in Ghost - The Musical, a retelling of the hit 1990 film Ghost, which starred Demi Moore and Patrick Swayze.