According to In Touch Weekly, the actor got the beautiful belly from his love of the outdoors and physical training.
He won the title over personalities such as Usher, Brad Pitt and Will Smith.
Here is the top 10 list from In Touch Weekly:
1. MATTHEW McCONAUGHEY
2. JOSH DUHAMEL
3. GEORGE CLOONEY
4. WILL SMITH
5. BRAD PITT
6. SEAN PENN
7. STEPHEN DORFF
8. RYAN PHILLIPPE
9. USHER
10. NICK LACHEY