Girls Aloud star Sarah Harding has been diagnosed with breast cancer.
The 38-year-old singer took to Twitter to tell fans that she has been battling the illness since earlier this year.
In a heartbreaking series of tweets posted this morning, the popstar said that the cancer has advanced to other parts of her body in recent weeks.
Sarah said she is fighting ‘as hard as she possibly can’ as she continues to undergo weekly chemotherapy sessions.
The star also posted a picture of herself in hospital.
She said: "I hope you are all keeping safe and well during these uncertain times. I've not posted on here for so long, thank you to everyone who has reached out to check in on me, it really does mean a lot.
"I feel now is the right time to share what's been going on.
"There's no easy way to say this and actually it doesn't even feel real writing this, but here goes.
"Earlier this year I was diagnosed with breast cancer and a couple of weeks ago I received the devastating news that the cancer has advanced to other parts of my body.
"I'm currently undergoing weekly chemotherapy sessions and I am fighting as hard as I possibly can.
"I understand this might be shocking to read on social media and that really isn't my intention.
"But last week it was mentioned online that I had been seen in hospital, so I feel now is the time to let people know what's going on and this is the best way I can think of to do so."
She also thanked her "amazing mum, family and close friends" as well as the "wonderful NHS doctors and nurses" who were attending her.
Harding formed Girls Aloud with Cheryl, Nadine Coyle, Nicola Roberts and Kimberley Walsh on ITV's Popstars: The Rivals in 2002.
Cheryl simply shared a broken heart emoji in response to the news.
Nadine Coyle wrote on Instagram: “I love you! You have always been able to achieve miracles when needed! I am here for the all the way and always will be!”
