George Michael pleaded guilty Tuesday morning in London to driving while under the influence of drugs.
The singer, 43, admitted the offence on the first day of his trial at Brent Magistrates' Court in the British capital, according to the Press Association.
A second count – of being in charge of a vehicle while unfit through drugs – was dropped by the Crown Prosecution Service.
On Tuesday, the singer set off a metal detector as he went into court and was forced to undergo a body search by the security staff.
In court, the judge ordered the pop star, who had been sitting with his attorney, into the dock when his case was called. Apparently confused while entering his plea, Michael said: "No guilty, no – hang on a minute …," before conferring with his lawyer, changing his mind and admitting to the charge.
"I am perfectly aware that I did something very wrong and got into my car when I was unfit to drive," Michael told the court, the Associated Press reports. "I was not in my normal physical state, and I'm perfectly prepared to accept the correct punishment for that and I would have accepted it a long time ago."
The former Wham! singer was arrested last October
after being found slumped unconscious at the wheel of his car at a traffic light near his home. Police had responded to complaints by other drivers who reported that Michael's car was blocking the road. At the time, Michael was briefly hospitalized and subsequently charged.
Sentencing is scheduled for May 30.