American comedian, Billy Eichner, has come back with new episodes of Billy on the Street, where he takes celebrities to surprise people on the streets.
This time he was accompanied by Emma Stone and had a mission to get people to shame her into starting an Instagram account.
It all went horribly wrong when Billy Eichner asked a man to name his favourite Emma Stone movie, to which he replied with a certain movie involving witches and wizards.
You can see the disappointment on her face as she realises that he thought that she was Emma Watson, but of course, she plays it off cooly.
Things got better, thankfully, as people started naming their favourite Emma Stone movie to be La La Land.