Britney Spears has thanked her fans for their support during her recent troubled period. The rejuvenated singer wrote on her website, "The reason for this letter is to let everyone know that their prayers have truly helped me. I am so blessed that you care enough about me." Last March, the Toxic singer spent a month in a rehabilitation clinic. Following her treatment, she has made a few brief appearances on stage, perm. Spears is currently working on a new album, and has performed at various House of Blues concerts in California, duetting . The 25 year-old is collaborating with celebrated songwriter Kara DioGuardi. | 
