Beyonce and Jay-Z have pledged to take on a plant-based vegan diet for the next three weeks, the rapper announced on his website, Life + Times.

"Psychologists have said it takes 21 days to make or break a habit. On the 22nd day, you've found the way," Jay wrote by way of an introduction.

Posted in: Beyonce

Jessica Simpson's post-baby weight loss regimen is detailed in the new issue of Life & Style, which may or may not have used a cover photo from 2005.

Check out the photographic "evidence" of her AMAZING turnaround!

Posted in: Jessica Simpson