Pete Doherty has canceled a concert and is returning to treatment in a drug rehabilitation clinic, his tour's concert promoter said Friday.

Doherty, 27, the front man for the band Babyshambles, has been publicly battling addiction to heroin, cocaine and other drugs for months.

His band was booked to perform Wednesday on the Spanish party island of Ibiza, but concert promoter Andy McKay said Doherty instead would be booking into an undisclosed clinic Monday.

"We were all really looking forward to welcoming Babyshambles back to the island this year for Ibiza Rocks but, at the end of the day, we love and support Pete and it's his health and happiness that are important," McKay said.

Doherty, the former lead singer of the Libertines, gained international attention after a British tabloid printed pictures of his then-girlfriend, supermodel Kate Moss, allegedly using cocaine at a music studio where Doherty and his band were recording.

Doherty was arrested in April for suspected drug possession and admitted seven charges of possessing drugs including heroin, cocaine and cannabis. He had already been on probation over a December incident in which police found marijuana, heroin and crack cocaine in Doherty's car and clothing.

During his most recent court appearance July 13, he testified that he had yet to achieve a single "clean" test for drug use but would keep trying, and planned to have an opiate suppressant surgically implanted in his stomach.

Last month Doherty checked into a drug-rehab clinic in Portugal, missing a London court date in the process.