He sang and played 5 string banjo, electric bass and flute with the group, which consisted at the time of Bobby, Paddy, and Liam Clancy and Finbarr's cousin, singer-songwriter Robbie O'Connell.

As part of this group, Finbarr appeared in the Clancy Brothers' filmed "Farewell to Ireland" performance in early 1996, which has since been released on DVD.

[4] In 2008, Clancy joined the new Irish ballad group, The High Kings, along with Martin Furey, Darren Holden, and Brian Dunphy.

The group's first, self-titled album reached number two on the Billboard World Music chart.

As part of The High Kings, Clancy has performed before the presidents of the United States and the Republic of Ireland and has appeared on numerous television programs.