Sports Illustrated Swimsuit Issue's Newest Model: Barbie

Mattel unveils new 'Unapologetic' campaign in advertorial

This year, the Sports Illustrated Swimsuit Issue turns 50, which means that plenty of SI Swim Legends will be popping up to pay tribute to this all-American institution. But among the Kates and Heidis and Christies, there’s one unexpected name making an appearance in this year’s issue: Barbie. Yes, that Barbie.