What makes Celtic Woman by Celtic Woman notable?

The album quickly gained popularity, reaching No. 1 on the Billboard World Albums chart, contributing to a resurgence of interest in Celtic music worldwide. Its blend of classical and folk elements helped shape the modern Celtic genre and positioned Celtic Woman as a leading act in this space. Celtic Woman's self-titled debut album, released in 2005, marked the group's emergence into the global music scene. At this point, they were introducing their unique blend of Celtic and contemporary influences, establishing a foundation that would lead to subsequent albums and tours.