Fancy seeing a grown man balance his brother on his head? Well, you've come to the right place!
Amanda's heart was in her mouth as she watched this truly incredible gravity-defying act, and we're pretty sure yours will be too.
See more from Britain's Got Talent at http://itv.com/talent
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OMG! Watch The Giang Brothers’ UNBELIEVABLE show of strength! | Auditions | BGT 2018 ─ Britain's Got Talent
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