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Published on 26 Apr 2015 | over 2 years ago

See more from Britain's Got Talent at itv.com/talent

These boys certainly know how to work their, err, sticks, but we're not sure there's a whole lotta synergy going on!

"There were some timing issues between you, if you watch that back you probably wouldn't be happy," says Alesha.

We hear Dec's pretty handy with a karate chop...

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