Celtic Thunder - "Celtic Christmas Morning" - CELTIC THUNDER Celtic Christmas Morning showcases holiday music the Irish way to captivate audiences around the world. This album includes classic ballads "O Holy Night" "Have Yourself A Merry Little Christmas" and alongside energetic takes on "Winter Wonderland" and "Baby It's Cold Outside". The group's popular Irish and Celtic songs have made CELTIC THUNDER one of the best-loved and most successful musical acts in the world, on tour since 2008.