Britney Spears accuses her mum of sleeping with her boyfriend

Britney Spears showed the extent of her mental problems as she was admitted to hospital - by angrily accusing her MUM of sleeping with her boyfriend.

Insiders say that when she first went in she was "hurling profanities" at her parents and the staff of L.A.'s UCLA Medical Center.

But most amazingly she started screaming at her mum Lynne, accusing her of "sleeping with my boyfriend".

Although she did not say who she was referring to, Spears is currently dating Birmingham paparazzo Adnan Ghalib.

However it is not the first time the troubled star - currently getting emergency psychological help - has made such claims.

She has previously accused her mum of getting too close to Britney's ex-husband Kevin Federline, using her delusions in part as a basis for her rift from her family.

Insiders told U.S. media that Britney said she was on Adderall, a stimulant used to treat Attention Deficit Disorder, when she was admitted.

And she also admitted to taking up to ten laxatives a day, having previously been caught buying laxatives on her regular shopping trips.