Lily Collins & Elizabeth Olsen: Louis Vuitton Cocktail Party!

Lily Collins and Elizabeth Olsen arrive at the Louis Vuitton Cocktail Party on Tuesday (March 5) in Paris, France.

The 23-year-old The Mortal Instruments actress and Elizabeth, 24, came out to support the opening of the new Louis Vuitton store as part of Paris Fashion Week.

PHOTOS: Check out the latest pics of Lily Collins

The day before, Lily was all smiles while heading into LAX Airport to catch her departing flight overseas.

10+ pictures inside of Lily Collins and Elizabeth Olsen at the Louis Vuitton Cocktail Party…