Keith Harkin talks about his dad and Celtic Thunder
Keith Harkin’s Favorite Celtic Thunder Song to Sing | Real Biz with Rebecca Jarvis | ABC News
Celtic Thunder - Hard To Say I'm Sorry ft. Keith Harkin
Celtic Roots - 'Rosa'
Keith Harkin Sings,Talks Celtic Thunder, Career, Life, Family on The Jim Masters Show!
Celtic Thunder - I Want To Know What Love Is (Live From Dublin / 2007) ft. Keith Harkin
Celtic Thunder then and now all members past and present 2020 update
Keith Harkin - Keith Harkin (EPK)
Celtic Thunder - Lauren And I (Live From Ontario / 2015) ft. Keith Harkin
Celtic Thunder facts
Keith Harkin's heart to heart interview with Brigid Boden of IrishETV
Celtic Thunder - The Mountains Of Mourne (Live From Ireland, 2020) ft. Keith Harkin
Celtic Thunder - Lauren And I (Live From Ontario / 2015 / Lyric Video)
Behind the Scenes with "Keith & Emmet"
Behind the Scenes - "Australia Cast Rehearsals"
Celtic Thunder - Sound of Silence (Live From Dublin / 2012 / Lyric Video)
The Show - 'Lauren & I'
Celtic Thunder Members then vs Now
Celtic Thunder - Whiskey In The Jar (Live From Poughkeepsie / 2010 / Lyric Video)