Fiach Moriarty's songwriting talents have earned him invitations to collaborate with the RTÉ Concert Orchestra, Paul Brady, Declan O'Rourke and Eddi Reader and appear as host and musician in the 6-part Virgin Media musical travel show 'Jingle Jangle' alongside Fiachna Ó Braonáin (Hothouse Flowers) and Jim Lockhart (Horslips).

Most recently, Fiach has recorded and performed with Harry Connick Jr, Mundy, Marti Pellow (Wet Wet Wet), Christy Dignam (Aslan), Chesney Hawkes, Úna Healy, Brian Kennedy, John Sheahan (Dubliners), Paddy Moloney (Chieftains), Gerry Leonard (David Bowie) and appeared on 'Other Voices' with the Grammy-nominated Beoga.

As of January 2025, Fiach's cover version of E.L.O.'s 'Mr. Blue Sky' has amassed in excess of 65 million views on social media streaming platform TikTok.

He has released three studio albums; So i (2010) The Revolution (2015) and Liberties (2024).

Fiach also plays guitar with trad-fusion group ALDOC and the groundbreaking, genre-inventing HORSLIPS.