Celtic Thunder is the name of two different music groups. The Celtic Thunder band should not be confused with the PBS TV production of 2008, which features a variety of commercial Irish and non-Irish material sung by an assortment of vocalists and others, and who also calls itself "Celtic Thunder."
The group known for its specials on PBS is a singing group composed of soloists who perform both solo and ensemble numbers. Celtic Thunder debuted in August 2007 at The Helix in Dublin, Ireland. They are accompanied by the Celtic Concert Orchestra under the direction of Phil Coulter, the musical director of the group.
Since the original band's formation in 2007, Celtic Thunder has released nine albums: Celtic Thunder, Act Two, Take Me Home, It's Entertainment, Christmas, Heritage, Storm, Voyage, and Voyage II, as well as eight live performances on DVD entitled Celtic Thunder: The Show, Take Me Home, It's Entertainment!, Christmas, Heritage, Storm, Voyage and Voyage II
In December 2009, Billboard magazine named Celtic Thunder Top World Album Artist. Their first three albums also placed in the Top 10 for World Albums.
Celtic Thunder is known for its eclectic style with songs ranging from a soloist to an ensemble focus. The group is backed by the Celtic Thunder Band on their concert tours, and their live shows are known for the use of dramatic effects via lighting and choreography as well as a stage set resembling an ancient stone pathway suggestive of those referenced in Celtic lore.