Nicole Richie Hosts House of Harlow 1960 X Revolve Party

Nicole Richie flashes a smile as she steps out for the House of Harlow 1960 x Revolve Brunch on Monday afternoon (August 27) at the Unlikely Florist in Venice, Calif.

The 36-year-old designer kept things cool in a black sweater with yellow and white diamonds sewn into it for hosting duties.

PHOTOS: Check out the latest pics of Nicole Richie

Nicole hosted the event to promote her upcoming fashion line while taking a floral arrangement class with her guests.

Also stepping out for the event was actress Madison Pettis.

10+ pictures inside of Nicole Richie at the event…