Now on their third try to explain why Britney Spears tested positive for an amphetamine last week, Spears' lawyers will claim in court tomorrow that Britney's prescription for ADD caused her to fail her random drug test. TMZ reports:

As we first reported, a source connected to Britney first said Provigil, a drug used to treat narcolepsy, was the cause of the false positive. But then TMZ reported that Provigil would not show up on a court-ordered drug test. Then Brit's peeps said the reason for the positive reading was that she has asthma, and used an inhaler of Albuterol. But then we reported the drug Brit tested positive for was an amphetamine -- and Albuterol is not. So now -- Atttention Deficit Disorder -- just like Paris. And based on our information -- just like Paris -- we believe Britney's prescription is for Adderall. That drug fits the bill, because Adderall is an amphetamine."

Never in the history of Britney Spears has ADD or Adderall ever been mentioned. Not in her previous child custody hearings, or in news or interviews. Gee, I wonder why? Either Britney managed to keep this a secret from everyone on earth or her starfucking doctor just gave her a built in excuse for her obvious meth addiction. I'm gonna take a wild stab and say the second one. Britney probably doesn't even know what she's taking. She probably thinks Adderall is some kind of magical candy left for her by the fairies that live in the shoebox under the bed or whatever other insane shit that runs through her head.

Britney (with infected lips) hitting another paparazzo with her car yesterday: