Pop star Britney Spears has been taken to hospital in America, after a row with police over her two children.
Sean Preston, two, and Jayden James, one, were visiting Britney at her house in Los Angeles on Thursday.
The police were called and after three hours she handed the boys over to her ex-husband Kevin Federline.
Police thought Britney might have taken some kind of unknown substance, but they didn't know what exactly, so she was taken to hospital to be examined.
Britney was taken out of her house on a stretcher and taken to hospital in an ambulance. Lots of paparazzi were taking photos of her as the ambulance was driven away.
The 26-year-old singer and her ex-husband Kevin Federline have been in court a lot to try and decide who will look after their children.
At the moment, the boys live with Kevin most of the time, but also spend time with their mum.