Eva Mendes is the new face of Calvin Klein Underwear, posing in ads for the brand's Seductive Comfort line of bras.

The sultry ads were shot in March by renowned photographer Steven Meisel and will soon appear on billboards around the world.

This is not Mendes' first experience posing without clothes. In May, she posed topless for an issue of Vogue Italia. She has also appeared nude as Denzel Washington's girlfriend in "Training Day" and for the "I'd Rather Go Naked" anti-fur campaign for PETA.

Click here to see photos of the ads

Mendes, 34, checked into Utah's Cirque Lodge in January to seek treatment for what her rep described as "personal issues." She next appears in "The Women," with Meg Ryan and Annette Bening, and "The Spirit," with Scarlett Johansson and Gabriel Macht.

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