ALBAWABA - Some people really believe that Canadian singer Avril Lavigne had a body double named Melissa Vandella in 2003 after she died, which is part of the most outlandish conspiracy theory about her. When Avril's 2002 singles "Complicated" and "Sk8er Boi" reached number one on the charts, she was just 17 years old. The hypothesis contends, however, that Avril committed suicide soon after the release of Let Go, her ...