16 agents create a spontaneous musical in a food court in a Los Angeles mall. Using wireless microphones and the mall's PA system, both their voices and the music was amplified throughout the food court. All cameras were hidden behind two-way mirrors and other concealed structures.

This is one of nearly 100 different missions (funny pranks) Improv Everywhere has executed over the past eight years in New York City. Others include the Best Game Ever, the Food Court Musical, and the famous No Pants Subway Ride, to name a few.

Improv Everywhere stages a fake hypnotism performance complete with audience plants. Inspired by Andy Kaufman and Bob Zmuda. (The original mission a year before the "redux" mission.)

This is one of nearly 100 different missions (funny pranks) Improv Everywhere has executed over the past eight years in New York City. Others include the Best Game Ever, the Food Court Musical, and the famous No Pants Subway Ride, to name a few.

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. The mission was filmed with hidden robotic, lipstick, and wearable cameras. The song was played over the store's PA system live.

Improv Everywhere picked a random couple getting married at the City Clerk's Office in Manhattan and threw them a surprise wedding reception. The couple was treated to dancing, toasts, cake, and gifts, all with complete strangers.

This is one of nearly 100 different missions (funny pranks) Improv Everywhere has executed over the past eight years in New York City. Others include the Best Game Ever, the Food Court Musical, and the famous No Pants Subway Ride, to name a few.

In this Improv Everywhere Mission, Agent Whines considers ending it all.

This is one of nearly 100 different missions (funny pranks) Improv Everywhere has executed over the past eight years in New York City. Others include the Best Game Ever, the Food Court Musical, and the famous No Pants Subway Ride, to name a few.

Over 2,000 people walked "invisible dogs" down the streets of Brooklyn on a Sunday afternoon. The leashes were on loan from the current owner of 51 Bergen Street, the factory space where the invisible dog toy was invented in the 1970s. Participants of all ages spread out from Red Hook to Brooklyn Heights, very seriously walking their very silly dogs.

A little league baseball game is turned into a major league event. All players, coaches, and parents do not know what is happening. We worked with the league commissioner to get the kids' names and access to the field to setup our equipment the morning of the game. He was the only one in on it. NBC Sports worked with us and got us the jumbotron and the blimp.

Rob gives 2,000 high fives standing by the escalator during the morning subway commute in New York City.

This is one of nearly 100 different missions (funny pranks) Improv Everywhere has executed over the past eight years in New York City. Others include the Best Game Ever, the Food Court Musical, and the famous No Pants Subway Ride, to name a few.

Improv Everywhere stages a (fake) marriage proposal on an New York subway car.

This is one of nearly 100 different missions (funny pranks) Improv Everywhere has executed over the past eight years in New York City. Others include the Best Game Ever, the Food Court Musical, and the famous No Pants Subway Ride, to name a few.

700 agents lined the length of the Brooklyn Bridge a week before its 125th birthday. In the rain and cold we created a wave of camera flashes across the bridge from Brooklyn to Manhattan.

This is one of nearly 100 different missions (funny pranks) Improv Everywhere has executed over the past eight years in New York City. Others include the Best Game Ever, the Food Court Musical, and the famous No Pants Subway Ride, to name a few.