Channel 4 News Rick-rolls itself

He is one of Britains most respected journalist ... at least he was before people saw this.

Channel 4 News presenter John Snow has recorded a cringe-worthy version of the Rick Astley song 'Never Gonna Give You Up' to promote an item about Rickrolling.

The clip was initially hosted on the Channel 4 website but has since been posted to YouTube where thousands of people have watched Snow perform his  off-key singing and bizarre dance.