Troubled British rocker Pete Doherty has spoken out about his failed attempt to stay clean following a recent stint in a Portuguese rehab clinic. The Babyshambles frontman cancelled his band's appearance at music event Ibiza Rocks in Spain this week (26JUL06) and will instead be having an opiate-suppressing device fitted to help keep him heroin free. And he's hoping the measure proves more successful than his last bid in June (06). He says, "I went to (Portugal) to detox and got clean ready for the implant. Things just kept going wrong with the implant... then customs cut it open. "After (being arrested in) Sweden, it was so bad I had to have a nasty, dirty old hit as soon as we got back to London. "It f**ked me up for three days."