Scott Foley, Sarah Hyland and Randy Jackson prank people in hidden-camera situations.

Kristen Bell, Justin Bieber and Michael Bolton interact with everyday people in hidden-camera situations.

Beth Behrs, Chris Harrison and Usher interact with people in funny situations caught on camera.

Wanda Sykes, Olivia Munn, and Tim McGraw prank unsuspecting people in hidden camera situations.

Jeff Garlin and Brad Paisley interact with random people in funny situations caught on camera.

Josh Groban, Jimmie Johnson, Lauren Graham and Mario Lopez interact with random people.

Celebrities Ellen Pompeo, Taye Diggs and Harry Connick Jr. interact with random people.