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

See more from Britain's Got Talent at 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: bit.ly/BGTsub
Facebook: / bgt
Twitter: / bgt