The final day of New York Fashion Week, featuring the triple threat first-name-only-required lineup—Calvin, Ralph, Oscar—leaves editors almost always on a high note, and this season was no exception. Francisco Costa wowed with a minimal (yet completely magical) collection for Calvin Klein, hosting the most star-studded front row of the day, including Julianne Moore and Katie Holmes. Click through the gallery below for all the need-to-know news, trends we are loving now, plus our take on the hottest moments from New York Fashion Week!

See all the stars in the front row.

See all the Spring 2011 collections.