Marc Métral and Miss Wendy wow the crowd | Semi-Final 4 | Britain's Got Talent 2015

See more from Britain's Got Talent at http://itv.com/talent Simon was smitten following Marc Métral and Miss Wendy's sensational audition. Miss Wendy's feeling a bit catty during their semi-final performance, but will they claw it back?  SUBSCRIBE: http://bit.ly/BGTsub Facebook: http://www.facebook.com/BGT Twitter: http://twitter.com/BGT