Britney Spears and her ex-manager, Sam Lutfi, are going head-to-head in the trial of the century, and things are getting real. By which we mean Sam is trying to drag Britney, her weave, and her reputation through the mud.

Sam was Brit's unofficial manager during the dark period otherwise known as 2007-2008 (shudder, memories), and he is currently suing her for defamation of character. Oh, and he wants a hefty sum of money for breach of contract. We're not sure why Sam feels the need to sully Brit's character during their trial, but his latest allegations are extremely upsetting. We've rounded them up for those brave souls who are willing and ready to be traumatized.

1. Britney Allegedly OD'd On Amphetamines The Night She Was Institutionalized
According to Sam's lawyer, Brit took 6-8 amphetamines on January 28th, overdosed, and was put on a 5150 hold. Holy cow!

2. Sam Tried to Help Britney Help Herself
Sam claims that he tried to convince Brit to cancel her notorious 2007 MTV Awards appearance because she was "overweight" and wouldn't rehearse, but she refused.

3. She Reportedly Shaved Her Head To Hide Drugs
Sam's lawyer claims that Britney shaved her head to hide traces of crystal meth. Apparently, she feared her hair would be drug tested, and that she'd subsequently lose custody of her kids.

4. She Allegedly Had Her Carpets Cleaned To Hide Meth
Sam alleges that a drug-sniffing dog found meth in Britney's crib back in 2007. He also claims that he covered up traces of meth by shampooing the floor and replacing the carpet.

Breath through it, gang.

Source: TMZ, TMZTMZ