RARELY seen Britain's Got Talent child star looks totally different ten years after he wowed the judges with his jokes aged just 16.
The young comedian auditioned in the sixth series of the show in 2012 - making it all the way to the semi-finals where he came in fourth place.
Callum, now 27, was first seen in a brief montage of auditions in the show, making a joke about how video games negatively influence young people.
He was seen receiving four 'yes' votes from the judging panel - which consisted of Simon Cowell, Amanda Holden, Alesha Dixon and David Walliams.
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