Pete Doherty has been jailed for 14 weeks for failing to turn up to probation hearings on time and drug use.
The Babyshambles frontman attended West London Magistrates Court today, where Judge Davinder Lachar handed him the sentence.
Doherty had been given a suspended jail sentence for possession of drugs and driving illegally in October last year.
His supervision order required him to make regular visits to court for progress reports, as well as take part in a drug rehabilitation programme.
A spokesperson for the court said that Doherty had been jailed for "breach of time keeping, non-compliance of his order and using different drugs".
The 14-week sentence means the singer has been forced to postpone a much-anticipated sold-out solo show at the Royal Albert Hall in London on 26 April.
He will also miss the Glastonbury Festival which runs over 27-29 June. Doherty was due to headline The Park Stage at the festival and was also rumoured to perform with Babyshambles.
