Martha Stewart is looking fit and fabulous at 81 years young on the cover of Sports Illustrated Swimsuit Issue, becoming the oldest model to grace the highly coveted cover. “It’s odd to go to an island and then get changed into nine different bathing suits in one day in front of all those people, and it turned out OK!” she remarked about the cover when it was debuted on “TODAY” on Monday morning. Access Hollywood breaks down her big modeling gig; plus, we share a peek at what stars like Rihanna and Priyanka Chopra were up to this Mother’s Day.

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