Ashley Greene has become the new face of DKNY and DKNY Jeans.

The 'Twilight' star will appear in the brands' spring 2012 ad campaigns and says she can't wait to get to work.

She revealed: "I've always loved Donna Karan's creations. To be a part of the brands' message is incredibly exciting because it feels like such an organic fit. It's easy to talk about how these clothes work for my lifestyle, whether I'm in New York, L.A. or traveling for work."

Donna Karan vice president Patti Cohen says Ashley was the ideal person to front the campaigns because she is aware of the importance of social media sites such as twitter and Facebook.

She said: "Ashley embodies everything DKNY - her energy, her spirit, her eclectic personal style. She is on the forefront of what it means to connect with a global fan base through social media, a focus that is aligned with our digital and new media initiatives."

Ashley has previously revealed she refuses to get so slim she has a "child's body" as she prefers to have a healthy and toned figure.

She said: "A lot of people like to be super tiny, but I don't want a child's body - I want a woman's body that is extremely fit. It's so much sexier."