Britney Spears took drugs in front of her young sons, her former bodyguard has claimed.

Tony Barretto - who was fired by the 'Toxic' singer in May - also alleges Britney paraded around naked in front of Sean Preston, two, and one-year-old Jayden James.

Britney Spears could allegedly lose custody of her two sons this morning.

The lawyer of Britney's ex-husband Kevin Federline is reportedly bringing a "secret" witness to a court hearing in Los Angeles at 8.30am, whose evidence could see two-year-old Sean Preston and one-year-old Jayden James immediately removed from Britney's care.