While Sports Illustrated is a publication that’s been going strong for decades, some of its most iconic covers have come from the annual Swimsuit Issue. This year there were four cover models including Megan Fox and Martha Stewart, both of whom stunned in their respective photo shoots. It turns out that Fox didn’t even have to prep for her cover, and I’m honestly impressed. I guess there’s a reason she played the lead character of "Jennifer’s Body."

Megan Fox has been making countless headlines lately due to her relationship with Machine Gun Kelly, although she’s been keeping busy professionally. On top of appearing in the upcoming movie "The Expendables 4," she also broke the internet thanks to shooting the cover of the Sports Illustrated Swimsuit Issue. She was asked by Extra TV about her prep for this cover, and it turns out that she didn’t need to do much. And I’m impressed by her constant focus on fitness.