Such is Mango! (Fashionista.com)

J.C. Penney really seems to be making moves to up their fashion game in the mass market.

Charlotte Ronson’s I Heart Ronson line is said to have done really great business. And, of course, the Olsens are now on board with Olsenboye .

It was just announced this morning that Barcelona-based Mango will be rolled out into over 600 J.C. Penney locations for fall 2010, making it the largest contemporary line carried in the store.