Jay Z and Beyoncé Go Vegan

12/4/2013, noon
Jay Z and Beyoncé.

Jay Z marked his 44th birthday celebration with a declaration of going vegan for 22 days via his blog.

The challenge began Tuesday Dec. 3, a day before his birthday. And Jay Z released the following message:

On December 3rd, one day before my 44th birthday I will embark on a 22 Days challenge to go completely vegan, or as I prefer to call it, plant-based!! This all began a few months back when a good friend and vegan challenged me to embrace a 'plant-based breakfast' everyday. It was surprisingly easier on me than I thought.

The Rap mogul and his superstar wife Beyoncé will be embracing the vegan lifestyle until Wednesday, December 25.