Troubled star Amy Winehouse has sparked rumours she is back on drugs following the release of photographs capturing her with residue of a white powder in her nostril. The singer was pictured with the substance in her nose on the way to her Blackpool, England gig as part of her U.K. tour on Tuesday (20Nov07) - shortly after pal Pete Doherty claimed she had cleaned up her wild ways. The Babyshambles rocker has also pledged his support for Winehouse while her husband, Blake Fielder-Civil, fights charges of perverting the course of justice in relation to a charge of grievous bodily harm. He says, "Blake has got clean since he has been in prison. It's been quite an awakening. Amy stopped doing everything since he went in. She realises how much they have to lose. They are going to lose each other if it carries on. Love, music and melody is the way forward." Fielder-Civil is currently being remanded in custody at London's Pentonville Prison following his arrest earlier this month (Nov07).