George Michael has abandoned a bid for freedom, cancelling an application for bail.
The gay singer began an eight-week sentence on Tuesday for crashing his car while under the influence of cannabis after London Pride in July.
His lawyers were due to apply for bail today, arguing that the sentence was excessive and that an appeal would not be completed until after the sentence finishes.
But a spokeswoman from Blackfriars crown court said today that the application had been abandoned.
The 47-year-old singer already has a conviction for driving under the influence of drugs and was found slumped over the wheel of his car when police found him on July 4th.
He had crashed the Range Rover into a branch of Snappy Snaps in north London.
He pleaded guilty to the offence and to possessing two cannabis joints.
Reports say Michael is not coping well with his stay at Pentonville prison, with sources reporting that he has been given medication to help him sleep.
He is in solitary confinement for his own safety, although long-term boyfriend Kenny Goss has visited him.
Last month, he was handed an interim six-month driving ban.
His arrest came not long after the end of a two-year driving ban incurred in 2008 after he was caught in possession of crack cocaine and marijuana.
In 2007 he was given 100 hours of community service after being found unconscious at the wheel of his car by police.