It's being called the first music video made in space.
In an online video posted to YouTube, Canadian astronaut Chris Hadfield sings the David Bowie song "Space Oddity" while floating around in zero gravity aboard the International Space Station.
The video has already netted more than 1 million views in the last 24 hours.
Hadfield and U.S. astronaut Thomas Marshburn are scheduled to return to Earth on Monday.
Mobile users click to watch the video: http://youtu.be/KaOC9danxNo