FILE - In this Thursday, April 12, 2018, file photo, Britney Spears accepts the Vanguard award at the 29th annual GLAAD Media Awards at the Beverly Hilton Hotel in Beverly Hills, Calif. Spears wants to be freed from her father. (Photo by Chris Pizzello/Invision/AP, File)
A US court has rejected an attempt by Britney Spears, 38, to have her father removed as a conservator of her estate.