Stefan Karl Stefansson - Last public performance in December 2017

In December 2017 at Harpa Concert Hall in Iceland Stefan Karl made a guest appearance at the annual Christmas concert of Icelandic singer Björgvin Halldórsson where they sang a duet by Mani Svavarsson (Lazy Town Composer).
The duet is called Alone For Christmas or Aleinn um Jólin (Icelandic). We have added an UNOFFICIAL translation below the Icelandic lyrics, after each verse just so you get the gist of what they are singing about.
We the family of Stefan Karl have permission from performer and songwriter to share this video of the recorded performance with Stefan's fans on his RUclips channel.
Alone for Christmas performed by Björgvin Halldórsson and Stefán Karl Stefansson
EINN UM JÓLIN - Alone for Christmas
Máni Svavarsson (music) / Halldór Gunnarsson (Lyrics)
Veistu hvað sagt er um menn,
sem oft týna leið?
þeir sjái á jólunum ljós.
Do you know what they say of those
that often loose their way?
That they see the light at Christmas time.
Veistu hvað sagt er um þann,
sem oft stendur einn?
að hann á einhvern að um jólin.
Do you know what they say of those
that often stand alone?
That they have someone close at Christmas time.
Enginn mig sér,
sama er mér,
þótt hátíð sé inni þá úti ég er.
Ég vil vera' í friði um jólin.
Því er ég einn um jólin.
No one sees me
I really don't care
celebration takes place, I am nowhere near
I want to be left alone at Christmas
Thats why I'm alone for Christmas
Ef það er satt
að svart verði hvítt
og kalt verði hlýtt
á jólakvöld.
Þá getur það gerst
að þú gætir breyst
og loks fundið frið um jólin.
If it is true
that black becomes white
and cold becomes warm
on Christmas Eve
Then it could be
that you could change
and find some peace at Christmas
Hvað er að mér?
Kaldur ég er,
þoli´ekki ljósin og gjafirnar hér.
Ég vil vera í friði' um jólin.
Því er ég einn um jólin.
What is wrong with me
I'm cold,
Can't stand the lights or the gifts
I want to be left alone at Christmas
Thats why I'm alone for Christmas
Á torginu ríkir kyrrð og ró.
Ég horfi á ljósin og nýfallinn snjó.
þá heyri ég hljóm,
sem fyllir upp tóm
um jólin.
Outside is calm and quiet
I watch the lights and the new fallen snow
I hear a sound that fills my soul
on Christmas
Þekkir þú boðskapinn þann,
„þú elska skalt náungann“?
Allt árið um kring,
byrjaðu nú - um jólin.
Do you know the verse,
“Love your neighbor as yourself“,
All year around,
start right away - this Christmas
Performers/Singers: Björgvin Halldorsson og Stefán Karl Stefansson
Live version at Björgvin's Christmas guests concert in December 2017. Harpa Concert Hall Reykjavik, Iceland.
Guitar: Jón Elvar Hafsteinsson og Kristján Grétarsson
Bass: Eiður Arnarsson
Píano: Þórir Úlfarsson
Keyboards: Haraldur Sveinbjörnsson
Strings: Strengjasveit Jólagesta Björgvins
Percussion: Pétur Grétarsson
Organ: Þórir Baldursson