Thousands of Ryan Gosling fans were fooled into thinking the movie hunk had become a dad after a fake Facebook.com message suggested he had adopted a baby last year.
Pranksters behind the hoax profile set up in The Notebook star's name sent devotees into a spin on Father's Day after sharing a photo of the actor holding a child.
The accompanying caption read: "This father's day, I've decided to tell the story of how I became a father."