"Astronaut" is the third single from Simple Plan's fourth studio album, Get Your Heart On!.

In December 2012, the song was played in Earth orbit by astronaut Chris Hadfield.

[1] The music video was directed by Mark Staubach and premiered on 19 September 2011.

The clip opens with a message that read, "Being human is the most terrible loneliness in the universe" and continues to show a lone man exploring an empty space.

The female lead for the clip is Caitlin O'Connor, a model/actress, who has previously played in music videos for Michael Bublé and New Found Glory.