Emily Blunt's New Addiction: Opium?!

No, this British beauty isn't heading to Promises. The billboard outside of Promises, maybe.

Emily Blunt has been named the newest face and ambassadress of Yves Saint Laurent's perfume empire, signing on to front Opium in a super sophisticated—and from the sounds of it, super sultry—ad campaign set to launch next month.

MORE: Check out Emma Watson's new perfume spot!

"I am very honored to have been chosen to be the face of Opium," she said. "It is really exciting to embody a fragrance which has stood the test of time without its allure ever being diminished."

So, what will John Krasinski's wife, who will be portraying a "fiery, reckless, seductive woman" in the forthcoming campaign imagery, be smelling like for the foreseeable future?

Why, what the fragrance has evoked since its debut back in 1977: mandarin orange, bergamot, lily of the valley, jasmine, carnation, amber, vanilla, patchouli and myrrh.

Phew! Talk about a mouth nose full.

PHOTOS: Smells Like Celebrity

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