Media playback is unsupported on your device

#BBCtrending: Spaceman Chris Hadfield tells his social media secrets

27 December 2013 Last updated at 07:33 GMT

Chris Hadfield was the first Canadian to walk in space - but he's probably better known for being a YouTube star.

While up on the International Space Station, he produced hours of content for social media. His biggest success came with his cover version of David Bowie's Space Oddity, which has been viewed almost 20 million times.

Hadfield told #BBCtrending's Anne-Marie Tomchak the secrets of his online success.

Produced by Benjamin Zand

All our stories are at

Follow @BBCtrending on Twitter and tweet using #BBCtrending

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.