The North Carolina-raised model, 22, is celebrating her first-ever time as the cover girl on the coveted Sports Illustrated Swimsuit Issue – a spot she landed after five years of posing for the magazine.
“It’s shocking and a dream come true!” Decker told PEOPLE shortly after learning that her photo would grace this year’s cover.
Another first? Doing a round of talk show interviews to promote her prestigious job. “I’ve never been on one! I’m kind of freaking out,” she said before appearing on The Late Show with David Letterman Monday. “I’ve done news shows, but I’ve never done a big talk show.”