Dannii Minogue had to have her appendix out after being rushed to hospital with stomach pains.
The X Factor judge spent four nights in a hospital in west London, the Sun reports.
The Aussie singer's spokesman said: "Dannii was taken into hospital with stomach pains. She was diagnosed with acute appendicitis and had an emergency operation. She is now convalescing."
Dannii took to Twitter to thank fans for their 'get well soon' messages, and said that boyfriend Kris Smith was nursing her at home.
"[Kris] is getting boyfriend points looking after me," she wrote.
"And little Ethan's smile is making me melt. Happy Days," she added.