The legendary pop-up event, Le Diner en Blanc, is returning to the five boroughs. 

Thousands of guests donning all-white outfits and toting picnic gear will gather at a secret location somewhere in the city to dine and dance Thursday night. This year’s theme is "Masquerade Ball."

The French-inspired soirée has made its way across the world. This year, 78 cities and 16 countries will host the event. This is the city’s 13th year, and more than 3,000 people are expected to attend.

Sandy Safi, Le Diner en Blanc international’s co-founder, owner and president, joined “News All Day” on Wednesday to discuss this year’s event.