Britney Spears' lawyers have filed legal papers in a bid to keep the singer's personal and medical records confidential.

Attorneys for the Toxic hitmaker's conservatorship, Geraldine Wyle and Jeryll Cohen, fear Spears' "critical information" and that of her sons, Sean Preston and Jayden James, will end up in the public domain.

They have now launched a legal bid to have the documents protected by a court order.

In papers obtained by TMZ.com, the attorneys state, "A Google search for Ms. Spears' name yields 54,300,000 hits... Photographs and personal information, particular information of a highly confidential nature (such as personal medical information of Ms. Spears and her children), can potentially reap thousands if not millions of dollars...

"The possibility of such enormous profits presents a substantial risk that Ms. Spears' most confidential medical and personal information will be disclosed."