We got word a while back that Alber Elbaz was working on a Lanvin denim collection with Acne Jeans. At last the collaboration has come to fruition and where there's a new collection, there's a party. Eva Mendes, Liv Tyler, and Rachel Zoe all put on something blue and celebrated alongside Alber Elbaz at Hotel de Crillon in Paris (where the Crillon Ball was held on The Hills). Lucky ducks! There were balloons floating, models in denim roaming, and lots of posing. Step inside the fabulous shindig.

To see more from the party, read more