It's being called the first music video made in space.
In an online video, astronaut Chris Hadfield sings the David Bowie song "Space Oddity" while floating around in zero gravity aboard the International Space Station.
As of Monday morning, the video posted more than 500,00 hits on YouTube.
The video features shots of a floating guitar that would look like a Hollywood special effect anywhere else. It also shows arresting images of the space station orbiting over Earth.
Hadfield and astronaut Thomas Marshburn are scheduled to return to Earth on Monday.