Jimmy Fallon and Saoirse Ronan stage an Irish pub lock-in and sing Fairytale of New York

"good ol' fashioned Irish pub lock-in"

With fairy lights lighting the smallest villages and Christmas jumpers being pulled from the back of the wardrobes, the Christmas feels are beginning to creep in around the country.

All that’s left to do is pop into a lock-in and sing ‘Fairytale of New York’ at the top of your voice.