LL Cool J.

In the book he will share tips to building and maintaining a physique and offers a 30-day workout regime and a diet plan that can apparently help you shed up to 20 pounds in just 4 weeks.

The press release says: "What truly elevates the Platinum 360 Diet and Lifestyle is LL Cool J's practical, easy-to-follow advice for personal transformation. Through self-reflection and spiritual guidance, he'll show you how to develop your own internal strength, giving your the tools and wisdom to transform your life from the inside out. It's not just about how to get fit, but you can—and deserve to be—your best self."

He’s looking good for his tender age of 41 though, isn’t he?