LATEST: Britney Spears has been reunited with her sons, just weeks after she had her visitation rights revoked following a breakdown at her Beverly Hills home. The troubled Toxic singer spent three hours with her sons, two-year-old Sean Preston and Jayden James, one, on Saturday (23Feb08) after reaching a visitation agreement with ex-husband Kevin Federline on Friday (22Feb08). Spears picked the boys up from Federline's Tarzana, California home on Saturday morning, in the company of her father Jamie and her psychiatrist, according to People.com. Photographers who witnessed the scene claim Federline buckled his children into their car seats before Spears drove off for her three-hour day trip with her kids. In January (08), Spears' visitation rights were taken from her after she reportedly held her children captive in her Beverly Hills mansion, sparking a stand-off with emergency services. Last week (ends22Feb08) the singer failed to have her visitation rights reinstated, but Federline responded to the ruling by insisting he wanted his kids to have a relationship with their mother.