Britney's 2-Year-Old Son Rushed to Hospital

Britney Spears's 2-year-old son, Jayden, was rushed to a hospital Sunday afternoon after having what some sources claim to be a "seizure." Two ambulances left the singer's home yesterday, one carrying Britney, the other transporting Jayden James, both headed to Cedars-Sinai Medical Center. The boy was discovered "vague and unresponsive" at their California Serenity Mansion, and broke out in hives, was itchy and irritable after suffering what looked like a serious allergic reaction.

According to People Magazine, sources say "they're just not sure" what caused the reaction, but "he's doing fine," after keeping the toddler overnight. Britney and her mother, Lynne, spent the night at the hospital with Jayden. It was the boys' first trip back with their mother after Britney's former husband and the boys' father, Kevin Federline, was granted full custody. Sources say, "One minute Britney and her sons were relaxing and enjoying their first visit to Kentwood in months, and the next minute Jayden had fallen ill." Britney requested a bed be placed in the same room as Jayden so she could stay with him. Federline is said to be in route to the hospital, but has not yet commented on the situation.