Saoirse Ronan and Jimmy Sing 'Fairytale of New York'

Saoirse Ronan and Jimmy have a Tonight Show lock-in, Irish pub-style, and serenade the audience with a duet of the Pogues' "Fairytale of New York."

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Saoirse Ronan and Jimmy Sing "Fairytale of New York"

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[jeffpats]

They weren’t touching that second verse with a 10 meter cattle prod

[OldTinLizzy]

This is a lovely rendition. RIP Shane MacGowan

[tbz]

That’s as good a mimic of Shane MacGowan’s voice that you will ever hear. Jimmy is one hell of a singing voice ‘chameleon’.

[saoirsenifhogartaigh]

By far one of the best Irish accents from an American! My favourite Christmas song just makes it all better!

[justiceflynn]

Very generous of the Tonight Show to perform this song on a national television show. This awesome deserve a big audience! Jimmy and Saoirse did a great job!

[lemat]

That was beautiful! RIP Shane. When I close my eyes I imagine Kirsty and Shane singing together again this Christmas. Thank you, Saoirse and Jimmy, No Christmas without this song.

[josephpawlowski]

the best thing is that this performance became real for both of them...God bless you, Irish people...I am Polish, but become jealous with such a great song

[haggis]

Best Christmas song of all time. You can’t change my mind.

[kinghailpaimon]

Coming from an Irish guy who has suffered through horrendous Irish accents from Americans, I wholeheartedly approve of this cover. Excellent job 👌🏼

[stephengallo]

This hit my heart in the bullseye. Jimmy is such a goofball that people forget what a brilliant artist he is when he dials down the silly and gets real. Love this. And Saoirse was beautiful and perfect for this.

[mrtoast]

I'm glad Jimmy didn't joke about doing the voice and did an actual cover, it sounded really good.

[conihaag]

Not only one of the best actresses of our time but also a good singer!? Someone give her an Oscar already

[ramialj]

Damn, Saoirse's singing voice sounds better than a lot of real artists live!!

[nightowl_]

I've developed a crush on Saoirse Ronan in the last couple of days. The more interviews I see her in I like her even more. She seems so down to earth and fun to be around with.

[philiphamer]

Great duo. Fallon's brilliant and Saorise is the most gifted actress of her generation. She can belt out a tune too.

[blindhorizon]

Saoirse Ronan is not only absolutely beautiful, but she also seems to be a genuine person. She is the entire package!

[lokisez]

It doesn't matter when or where - when I hear this song I start crying

[hyeree]

she has the voice of a child, so innocent I love it!

[charchaz]

2:47 it's such a small thing but I find it really sweet that he said happy Christmas to her without the microphone it felt very personal

[bettyryanogorman]

Saoirse is so natural and great fun - she'll never change no matter how famous she becomes - I love her - she's exactly the same in reality.