SAOIRSE RONAN teamed up with Jimmy Fallon for a powerful and suitably festive rendition of The Pogues/Kirsty MacColl classic Fairytale of New York.
Born in New York but raised by Irish parents in County Carlow, Ronan's appearance on The Tonight Show offered a chance for the 24-year-old actress to reconnect with her Irish roots.
It also gave Fallon, whose great-great-grandparents emigrated to American from County Galway, an opportunity to reconnect with the Emerald Isle in a sing-a-long celebration of a much-loved Christmas classic.
The perfect song for America's Irish contingent, the performance saw The Tonight Show studio decked out in Christmas lights, while the watching audience was kitted out in some festive jumpers, cranking the Christmas feels all the way up to 10.
Proceedings were given a distinctly Irish feel with a few hearty pints of Guinness that were handed out as part of an "Irish pub lock-in".
Thankfully, the performance lived up to the spirit of the 1987 classic with Ronan and Fallon providing a fun and surprisingly tuneful rendition of the duet made famous by Shane MacGowan and the late, great, Kirsty MacColl.
The festive Irish classic recently topped a poll as the most popular Christmas song of all time and this version certainly lived up to the billing.
It's the perfect video for anyone looking to get in the Christmas spirit ahead of the big day on December 25th and has proven popular online already.
A video of the performance, uploaded to YouTube, has already racked up well over 84,000 on the streaming site.
Ronan was appearing on the show to promote her new film, Mary Queen of Scots, which she is starring in alongside Margot Robbie.
A historical drama the film chronicles Mary Stuart's attempt to overthrow her cousin Elizabeth I as Queen of England and is due for release on Friday in the US and on January 18th in the US.