LONDON, England (CNN) -- British police will take no legal action against Grammy-award-winning singer Amy Winehouse, who was arrested last week for drug offenses, her spokeswoman said Thursday.
Amy Winehouse has a history of run-ins with police.
"They have now concluded their enquiries and no charges will be brought," according to a statement from her publicist, Tracey Miller.
She was questioned by police last Wednesday, arrested for alleged possession of a controlled drug, and released on unconditional bail a day later.
Winehouse, 24, is well-known for her song "Rehab," which describes the singer's reluctance to enter a clinic. She won five Grammy awards this year -- three for "Rehab" as well as Album of the Year and Best New Artist.
Winehouse has battled drug addiction and spent about two weeks in a rehabilitation clinic in January.
Police started investigating her in January after obtaining a leaked home video that showed her smoking something in a glass pipe minutes after she was heard saying she had just taken six tablets of the anti-anxiety drug Valium.
The Sun, Britain's top daily tabloid, made the 19-minute video public. It said the video was shot in Winehouse's East London home.
The Metropolitan Police investigated after receiving a copy of the video from The Sun.
Winehouse entered rehab last year. In October, she and her husband, Blake Fielder-Civil, were arrested at a Norwegian hotel for marijuana possession.
Last Wednesday's arrest was the second time in a week Winehouse was questioned by police. Police brought her in the previous Friday and issued her with a caution for assault after Winehouse admitted slapping a man in a Camden bar in north London.