K-pop stars perform as 'holograms'

A "hologram concert" theatre dedicated to K-Pop (South Korean pop) is allowing people to experience the genre in a new way.

The optical illusion involved is not strictly speaking a hologram - but rather the evolution of a Victorian trick of the light - as BBC Click's Spencer Kelly reports from the Klive K-Pop Experience.

See more at South Korea Direct.

More at BBC.com/Click and @BBCClick, external.