Britney Spears' dad has been given control of her money and well-being while the pop star is helped with her mental health.
A court in Los Angeles made the move after the singer was rushed to hospital for the second time in a month.
It's a decision that's usually made when someone cannot look after themselves and means James Spears can decide who gets to visit his daughter.
He can also get round-the-clock security at the pop star's home.
Britney's increasingly bizarre behaviour has seen her appear in the news a lot over the past year and it's left her family very worried about her.
Britney was taken to hospital earlier in January after a row with police
Earlier this year, she was admitted to hospital after a row with police when she refused to hand her two young sons over to her ex-husband.
A court later decided that Britney wasn't allowed to visit two-year-old Sean Preston and Jayden James, who's one.
The boys live with their dad, Kevin Federline, but until recently also spent time with their mum.