LATEST: Troubled pop star Britney Spears is returning to rehab in a bid to win back her children, according to U.S. reports. The Toxic hitmaker, 25, spent one month in the Promises Treatment Centre in California in March this year (07) after having her head shaved. According to website TMZ.com, Spears has admitted herself to the Crossroads Centre in Antigua "in an attempt to get custody of her children". Spears was ordered to hand over custody of her two sons, Sean Preston, two, and Jayden Jones, one, earlier this week (begs01Oct07).