George Michael has been arrested in London on suspicion of possessing drugs.
The 42-year-old was found slumped over the wheel of his car close to Hyde Park Corner early on Sunday morning.
A Metropolitan Police spokesman said: "A search of the man revealed what was believed to be controlled substances. He was arrested on suspicion of possession of controlled substances of category C and on suspicion of being unfit to drive."
"Following an examination by the duty doctor in the custody suite he was de-arrested for the driving offence," the spokesman continued.
The singer was bailed to return to a police station next month.
