The 24-year-old will appear in the brands’ spring 2012 ad campaigns and says she can’t wait to get to work.

"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," contactmusic.com quoted Greene as saying.