Pete Doherty has been jailed for six months after pleading guilty to possession of cocaine.
The 32-year-old, who was due to be playing Glasgow Barrowland tonight (Friday), was arrested in January last year by police investigating the suspected overdose death of heiress Robyn Whitehead.
Wearing a grey suit with waistcoat, a navy blue cravat and with a red handkerchief dangling out his top pocket, Doherty had whispered continually to his co-defendant as the background to the case was read out.
During mitigation Doherty's lawyer, said he was renowned for his drug abuse, adding: "It's an offence which addicts commit every day of every year."
He said of his client, who has fronted indie bands Libertines and Babyshambles and has recently been touring as a solo artist: "Any claim that this defendant somehow glamorises drug use is misguided.
"He takes no pleasure in his addiction. It's one thing he's said publicly he would not wish upon his worst enemy."
The judge described the case as "tragic" but added: "I make it clear though, abundantly clear, that the young woman's death was not caused by that supply of crack cocaine.
"Unhappily and tragically that woman died from the poisoning of another illegal Class A drug which she had chosen to take."
Miss Whitehead, 27, the granddaughter of the late Teddy Goldsmith, founder of The Ecologist magazine, spent the last 10 days of her life creating a documentary about Doherty.
Doherty's co-defendant Peter Wolfe, 42, who had pleaded guilty to two counts of possession of cocaine and one count of supplying cocaine to Miss Whitehead, was sentenced to a total of 12 months in prison.