In 2007, history was made in The Helix Building on Dublin City University's campus. There, Irish singing group Celtic Thunder performed for the very first time. While the group has changed in size over the past several years, their quality and skill has remained consistent. They've now become a household name, performing all over the world at different arenas and venues. Since their formation in 2007, the group has released 11 albums and were named Top World Album Artist by Billboard magazine on three occasions. Currently, there are six active members of Celtic Thunder.