Welsh choir Côr Glanaethwy raise the roof | Semi Final 1 | Britains Got Talent 2015

See more from Britains Got Talent at The 160-plus-piece choir from Wales had the audience and the Judges enthralled with their .\r
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The 160-plus-piece choir from Wales had the audience and the Judges enthralled with their mesmerising audition. But will their semi-final performance be the .\r
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Hallelujah! Its Côr Glanaethwy. The 165-piece Welsh choir brought the house down with their rousing semi-final performance. Could their magnificent rendition .\r
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