A representative for Amy Winehouse says the singer has checked into a treatment programme in London. Spokesman Chris Goodman said on Friday that the 27-year-old songstress wants to be sure she\'s ready to perform in Europe this summer. The rep says she\'ll stay at the clinic on \"doctors\' advice\". It was not clear what treatment she\'ll get at the Priory Clinic. It offers treatment for a range of psychiatric problems, as well as drug and alcohol addiction. Winehouse\'s breakthrough disc, 2006\'s Back to Black, won her five Grammy Awards and helped her achieve worldwide stardom, but her music has been overshadowed by drug use and legal run-ins. Winehouse has not released much music since, but she performed a short tour in Brazil in January and performed in Dubai in February.