It is every magician’s worst nightmare: doing a trick in front of a live audience which fails.

That happened to Dynamo at London’s O2 Arena.

It began well when he invited audience member Tom on stage to help him with a trick that involved him getting a mobile phone into a bottle.

He managed the first part of the trick but not the big finish. The phone was supposed to ring once, but it didn’t. Watch the video at:

http://www.bbc.co.uk/newsbeat/article/35931826/dynamos-bottle-magic-trick-didnt-go-to-plan-in-london

(Thanks to Michael Lyth for the link..)