Mary-Kate & Ashley Olsen: Estee Lauder Fragrance Launch!

Mary-Kate and Ashley Olsen are super chic while attending the Estee Lauder “Modern Muse” Fragrance Launch Party on Thursday evening (September 12) at the Guggenheim Museum in New York City.

The 27-year-old fashion designer twins were joined at the event by models Joan Smalls, Coco Rocha, Hilary Rhoda, and Iman. The sisters were also seen posing for a pic with makeup artist Tom Pecheux.

PHOTOS: Check out the latest pics of Mary-Kate and Ashley Olsen

Earlier in the day, MK&A presented their new Elizabeth and James collection at their fashion show.

10+ pictures inside of the Olsen Twins and others at the event…