We created separate walking lanes for tourists and New Yorkers on a Fifth Avenue sidewalk. More

We brought the movie Ghostbusters to life in the reading room of The New York Public Library at 42 Street. More

30 people throw a birthday party for a random stranger in a bar. More

Over 5,000 people took off their pants on subways in 44 cities around the world. More

a 13-member handbell choir provided some unexpected accompaniment for a Salvation Army bell ringer on Lexington Avenue in Manhattan. More

Knicks fans try to help Rob find his seat! More

We staged a spontaneous musical during lunch at the Trump Tower atrium. More

Six undercover actors burst into song in a grocery store in Queens. Three minutes and lots of silly choreography later, they returned to their roles as shoppers and stock boys. More

Thousands of people walked “invisible dogs” down the streets of Brooklyn on a Sunday afternoon. More

We installed a photography studio on a random subway car. More

Over 2,000 people of all ages downloaded the same mp3, pressed play at the same time, and had a blast together. More

We picked a random couple getting married at the City Clerk’s office in Manhattan and threw them a surprise wedding reception. More