The Irish singer performed to a crowd of around a hundred spectators, treating fans to live renditions of his hit singles, 'I'll Be Waiting', and 'Something I Can't Afford'.
On the other side of the portal, viewership which had switched between displaying New York and the recently connected cities of Lublin in Poland and Vilnius in Lithuania was smaller, with just one or two people staying for longer than a few minutes.
This was understandable, considering that the live music aspect of the event would have been lost on some of the far off spectators, as the portal does not transmit sound.
The Dublin side welcomed this performance, as Ducrot encouraged fans that stayed to sing and clap as he performed his tracks.
On this performance, Cian Ducrot said: “I’m so excited to be the first artist to perform at the Portal, especially to do it in my home country feels really special".
“Our culture of music is so rich so to be able to be a part of representing that is a huge honour. It’s was a very special experience for everyone involved", he added.
Elsewhere, Mary Mac Sweeney who is acting executive manager of Dublin City Council's Culture, Recreation and Economic Service and Economic Services Department added: "We are delighted to welcome Ireland’s own Cian Ducrot to the Dublin Portal and to be part of this unique music experience that brings art and culture together in Dublin’s City Centre".