Influenced by Acoustic/folk and pop genres, Tiernán prides himself in his unique vocal tone and relatable lyrics.
After taking part and winning his high school talent show at 15 years old, he set up his own independent record label in order to build a career immersed in music.
In June 2017, Tiernán went to New York City to shoot the music video to his single 'Emily.’ This caught the attention of New York’s Hall of Fame Radio presenter, Sean 'Hollywood' Hamilton, who invited him onto iHeart Radio’s KTU 103.5FM for a live aired interview broadcast to millions of listeners around New York.
Shortly after, Tiernán moved to Manchester to study Songwriting at British and Irish Modern Music Institute (BIMM).
Now living back in Northern Ireland, Tiernán is working with Los Angeles-based label and production team Known Strangers.