It's Entertainment! focuses on Celtic Thunder's affinity for a great popular song. A musical revue spanning six decades, It's Entertainment! is a perfect showcase for Celtic Thunder's versat... Read allIt's Entertainment! focuses on Celtic Thunder's affinity for a great popular song. A musical revue spanning six decades, It's Entertainment! is a perfect showcase for Celtic Thunder's versatile and talented performers.It's Entertainment! focuses on Celtic Thunder's affinity for a great popular song. A musical revue spanning six decades, It's Entertainment! is a perfect showcase for Celtic Thunder's versatile and talented performers.