Anastaciahas been forced to scrap her European tour after being diagnosed with breast cancer for the second time.
The singer, who [uuid=6445de8e-0286-40ef-9ecf-fb86bceb1734]appeared as a guest judge[/uuid] on The X Factor last year, was due to start her jaunt in London on April 6, but will now take time out to fight the disease.
Speaking in a statement, Anastacia said: "I feel so awful to be letting down all my amazing fans who were looking forward to 'It's A Man's World Tour'. It just breaks my heart to disappoint them."
A message on her official Facebook page read: "Now more than ever, she is determined to live by her motto "Don't ever let cancer get the 'Best of You'!"
"A born survivor, Anastacia has one goal and that is to make a full recovery with the support of her family, friends and everyone around her."
The star was first diagnosed with breast cancer in 2003, but later beat the condition after undergoing surgery and radiotherapy.
It is thought she will continue to work on new LP and will reschedule her tour at a later date.