Britney Spears has second baby boy

Britney Spears has given birth to her second son, according to reports.

The singer is said to have had a second son around 2am today, weighing in at 6 pounds 11 ounces.

A source close to Spears and husband Kevin Federline said: "Kevin took Britney to the hospital in the evening hours of September 11 to prepare for the Cesarean birth."

The birth comes only two days before the first birthday of the couple's other son, Sean Preston.