Shania Twain has posted a letter to her fans on her official Web site, thanking them for supporting her through a "rough time personally in my life." Twain and her husband, record producer-songwriter Robert "Mutt" Lange, announced their separation last month. "I wanted you all to know that I could not be getting through this without you," Twain wrote. "Your letters, e-mails and words of encouragement give me strength. Your overwhelming support reminds me to smile, no matter how deep the pain, and to always be grateful for all the beautiful blessings in my life." She added that music is her therapy and that she needs time to heal. However, she concluded, "Make no mistake. I will be back and hopefully stronger than ever."