Jimmy Fallon recently joined the cast of Stranger Things for a pretty fun prank.

He took the cast of Stranger Things to the Madame Tussauds Wax Museum in Times Square, where fans thought they were going to see a special exhibit for the upcoming third season of the show. What they didn’t know was that the “wax figures” were actually the cast standing extremely still.

Even Jimmy Fallon dressed as Barb couldn’t ruin this one.