The Dublin band have also charted highly throughout Europe
It's safe to say that by now, Fontaines D.C. are firmly established as one of the biggest (and best) Irish bands of their generation.
Until now, however, a number one album had eluded them. They came close to scoring a UK #1 in 2020 with their second album 'A Hero's Death', but it was pipped to the post by Taylor Swift's 'Folklore'.
Now, however, the Dublin band are celebrating after hitting the top of the charts in both the UK and Ireland with their third album 'Skinty Fia', which outsold its nearest rival (Ed Sheeran's '=') by two-to-one.
"You gave us our first NUMBER 1 with Skinty Fia in both the UK and in Ireland," they wrote on Instagram, sharing a picture of themselves in Dublin's Olympia Theatre. "Thanks to all of you who went out and got it. Thanks to everyone we work with. Love ye."
Among those to congratulate the rock band were their fellow Irish band Inhaler and former BBC DJ Annie Mac, who simply replied "Yesssssssssssssss".
The album has also performed well in other European countries, hitting #2 in the Netherlands, `#5 in Germany and #7 in France, while it's sitting at #3 in the US's Billboard Heatseekers Chart for new and breaking artists.
The band recently finished a US tour that saw them cancel several dates after frontman Grian Chatten was diagnosed with laryngitis.
They play Dublin's Iveagh Gardens on July 2nd and 3rd, as well as further dates at Vicar Street and nationwide in November.