Taylor Swift has revealed her mum is battling cancer.

The Blank Space singer shared the news about her mother Andrea, 57, with her fans in an emotional Tumblr post.

“This is something my family and I thought you should know about now,” Taylor said.

“For Christmas this year, I asked my mom that one of her gifts to me be her going to the doctor to get screened for any health issues, just to ease some worries of mine.

“She agreed, and went in to get checked. There were no red flags and she felt perfectly fine, but she did it just to get me and my brother off her case about it.

“The results came in, and I’m saddened to tell you that my mom has been diagnosed with cancer. I’d like to keep the details of her condition and treatment plans private, but she wanted you to know.”

Taylor has not revealed anything more about her mother’s condition.

She ended her note writing: “She wanted you to know because your parents may be too busy juggling everything they’ve got going on to go to the doctor, and maybe you reminding them to go get checked for cancer could possibly lead to an early diagnosis and an easier battle…

“Thank you for caring about my family so much that she would want me to share this information with you. I hope and pray that you never get news like this.”

Fans have rallied around Tay Tay, following the news.