Earlier this year, Niall Horan recorded a one-off TV special featuring the 45 piece RTE Concert Orchestra in Dublin. Airing on RTE One in May, the recordings are now being released as a full album this December.

The most successful member of One Direction since they broke up, Niall has gone on to sell 2.5 million albums worldwide. He's also been streamed over 2.6 billion times. The singer made the new collaboration announcement on his Instagram page.

Speaking on the new release, Niall said "Flicker was an album I made that came from the heart and my heart is very much in Ireland. Recording tracks from that album with a 45-piece orchestra was a dream come true and to be able to do it at home with the RTÉ Concert Orchestra, one of the best in Europe, if not the world, was really special.

"When recording the album, I could never get the production right on ‘So Long’. I played it in tour rehearsals one day and the band joined in with me. We ended up making a new version which sounds amazing live and has been part of our tour set list. I love that we can finally release a version of it now."

The nine-track album features eight reworked songs from the number one album, including one previously unreleased track 'So Long'.

Here's Niall performing 'Flicker' with the orchestra below.