Hip Op-eration crew
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Meet the world's oldest hip-hop dance crew

Hundreds of hip-hop dance crews are heading to Las Vegas this weekend to compete in the World Hip Hop Dance Championships.

But one of the groups performing already has an international title - that of the world's oldest hip hop group.

The Hip Op-eration crew come from the tiny New Zealand island of Waiheke near Auckland, and range in age from 65 to over 90.

BBC News caught up with them at their last rehearsal before the big event.

Video journalist: Mauricio Olmedo-Perez

Real Time is a series for the BBC News website in which ordinary people tell their own extraordinary stories.

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