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Apply now for BGT Series 18!

The Finalists' Chubby Bunny challenge

They've proved they can cut it on the Britain's Got Talent stage but how competitive are our Finalists backstage?

See who can stuff the most marshmallows in their mouth while saying 'Chubby Bunny'.

Logo of Britain's Got Talent
itv |

Apply now for BGT Series 18!