"She was in a terrible state, just sweating and shaking. Her pupils were huge - we thought she was dying," said Tony;
She went on a date with musician Day, 26 - who she'd met in rehab - telling her worried protection team she didn't need them. Tony said: "We did security checks on Howie and told her he was trouble. But she ignored us."
Hours later hysterical Britney, 25, called aides, claiming Day was refusing to let her leave their hotel room. Tony recalled: "She said she wanted to cancel the tour. She was very confused. We asked her if she was OK and reminded her she had a show to do. Then Howie came on the phone and started arguing with us. We knew we had to get to her fast."
Tony raced to LA's plush Mondrian Hotel with another bodyguard and Britney's best friend and PA Alli Sims. When they got to their room they found the door open and an appalling scene inside.
Tony said: "We could see Britney all red-eyed from crying. Howie was lying in his boxers asleep on the bed. The hotel room was trashed.
"There were half-eaten plates of food everywhere. There were blankets all over the floor, clothes strewn everywhere. The trash was emptied everywhere over the floor.
"The entire place was littered with empty beer bottles and liquor bottles, small glasses of ice and cigarette butts everywhere.
"On the surface of the dresser, I could see mounds of white powder and a straw on top. I suspected it was cocaine or powdered methamphetamines.
"By the side I spotted a glass pipe, which I knew from my drugs training was often used with crystal meth."
Tony went on: "I couldn't believe what I was seeing. Britney was completely out of it. We thought she'd overdosed. She was distraught, crying. Her skin was all waxy. She looked so ill. We tried to speak to her. My fellow bodyguard and Alli were so worried they wanted to get hold of a medic to detoxify her. We were panicking. We thought she was going to die.
"There was talk about where to put the detox line it was that serious - through her arm, which would make fans think she'd been injecting, or through her neck.
"It was very distressing. Eventually we decided to get her out of there. We grabbed her and took her downstairs. All the time all she could say was, ‘I don't feel good'.
"In the car she was really odd. She kept asking for the air con to be turned up because she was sweating so much. I knew that was a bad sign.
"Somehow, we managed to get her to the gig and on stage in time. When she started singing she was staring intensely at me. She was out of it. I kept telling the other guard she needed help but he said she'll get you if that's the case."
