Graffiti artist

Graffiti artist Mike Echlin painted trees against a black backdrop for a haunted-forest effect.

To create more space for the party while incorporating visual and interactive elements, the production team erected two custom-built black tents measuring about 110 by 25 feet on Wooster Street and about 70 by 20 feet on Spring Street.

Guests including Paula Patton and Robin Thicke (pictured) entered via Wooster Street, where paparazzi gathered on the cobblestones to take photos before the formal step-and-repeat.

The event's invitations and step-and-repeat signage featured a backdrop of downtown Manhattan embellished with graffiti-style lettering.

Guests could play with 30 Chanel-branded spray paint cans, which interacted with LED screens to make temporary graffiti.

An interior wall of the tents was a digital interactive graffiti space where guests could tag or write messages.

Guests including Elle editor Robbie Myers (pictured) were encouraged to interact with and look at the series of LED walls.

Professional graffiti artists worked with guests and created a more polished-looking piece at the end of the night.

Alexa Chung spun tunes at a DJ booth next to an acrylic Chanel No. 5 bottle. The bottle, which stood more 10 feet tall, was embedded with screens playing footage of the latest runway show from Paris.

Blake Lively, just one of a myriad of A-list celebrities on hand for the party, was given a personal tour of the store by Karl Lagerfeld.

In keeping with the store's downtown location, chalklike signage on the sidewalk marked the entrance to the dinner Karl Lagerfeld hosted nearby at 82 Mercer Street.