Troubled singer Amy Winehouse won't be charged with drug offences, relating to a video handed to police showing her supposedly taking narcotics.

The tape was given to cops in London in January, prompting her arrest last week. She was questioned and released on bail.

Winehouse's representatives are happy to announce police have dropped all charges.

And the singer has vowed to bring an end to her brushes with the law, and concentrate on her music.

Her spokesperson tells Wenn, "Police have confirmed that no action will be taken against Amy Winehouse in relation to an investigation into a video handed to them in January."

"She was questioned by police last week and released on unconditional bail. They have now concluded their enquiries and no charges will be brought. Amy's bail date to return to Limehouse police station has been cancelled, bringing this matter to an end."

"Amy is pleased to be able to move on and concentrate on music and particularly looks forward to seeing her fans again at eagerly awaited festival performances this summer."