Kirstie Alley
The 65-year-old actress Kirstie Alley displayed her remarkable transformation after her 50-pound weight loss. Bicycling played a major role in her journey to a healthier lifestyle. Plus she followed the Jenny Craig diet for a while.
Jennifer Hudson
Incredible singer, Jennifer Hudson, lost 80 pounds by portion control and constant exercise. She became the spokesperson of Weight Watchers in 2010 until 2014.