A sun-kissed Irina Shayk in a tiny pink-and-yellow halter bikini has landed her first cover of the Sports Illustrated Swimsuit issue.

The Russian-born, 25-year-old learned Monday at a taping of David Letterman's show that she won the coveted spot based on a photo shoot months ago in Hawaii. She's been in the wildly popular issue five times before.

"There were 10 models there to do the Top 10 List, and nobody knows until the last minute who the cover will be," Shayk said. "And then I saw it, and I couldn't believe it."

In keeping with tradition, the cover of the special issue is kept secret until the magazine is ready to hit newsstands.

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