Charlotte Ronson celebrated the launch of her I Heart Ronson line for JC Penney with a big party at Chelsea Piers in New York and as you can see she had some famous friends to party with. From left to right, Sophia Bush, Ronson, Hilary Duff, Olivia Thirlby and Zoe Kravitz stood out in casual, trendy fashions. I'm not always so totally about Ronson's "dishevled Hollywood girl" aesthetic and I happen to think Sophia Bush looks best in the photo above. But you be the judge of Ronson's new lower-priced line - and check out Mischa Barton and Alexa Chung at the party - after the jump.
Mischa definitely looks cute - I wonder if she'll wear any I Heart Ronson on her new show "Beautiful People?" Alexa Chung is sporting her usual quirky teen granny look which works on her and her only.

The new I Heart Ronson items definitely reflect the style of the celebs in attendance - lots of leggings and florals, and layerable items. Find the textured vest, leggings and floral dress below all at JC Penney.


Drew Barrymore: Unbuttoned
Roll On Theme Fragrances: Subtly Sweet!


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