The internationally renowned Celtic Irish choral group Anúna — the original vocal group in Riverdance — bridges the gap between classical and popular music with its pure, haunting, emotional, mystical and unusual sound. In a new special, the singers, musicians and dancers of Anúna perform popular and lesser-known Christmas music and reminisce about their most cherished holiday memories. Taped in front of a live audience over the course of two nights, the songs and performances combine dramatic candle-lit sets, crystalline voices, ethereal costumes and ritualistic movements. Anúna's previous public television special, 2007's Anúna: Celtic Origins, spawned a national tour and a best-selling CD, which remains a presence on the Billboard World Music Charts.