When 133 Young Men Step On The Stage, What Amazing Thing Will Happen? Absolutely Unique And Shocking!

<p><span>Watch Welsh choir Only Boys Aloud's awesome Britain's Got Talent audition in full!</span><br /><br /><span>All 133 members of Only Boys Aloud sang their hearts out to impress Britain's Got Talent judges Simon Cowell, David Walliams, Amanda Holden and Alesha Dixon.</span></p>