Grand Finale: Astronaut Chris Hadfield Closes Space Station Set With 'Space Oddity' Cover [VIDEO]

With his prolific tweets, informative videos, spectacular photos and now with a music video covering David Bowie's "Space Oddity," astronaut Chris Hadfield may be the most famous spaceman since Neil Armstrong and Buzz Aldrin made history with their moonwalk.

Ever since he's been aboard the International Space Station, Hadfield - who is the first Canadian to command the space station - has attracted tremendous attention to the space program, making what happens in orbit 240 miles above Earth accessible and informative for millions.He has posted videos of the peril of crying in space and what it's like to brush your teeth in zero gravity, as well as incredible photos of Earth from orbit. 

For his grand finale, Hadfield released the music video in the hours before he was scheduled to return to Earth. Like many of his posts, the video has gone viral, attracting more than 1 million YouTube views since it came online May 12.

Hadfield and astronaut companions Tom Marshburn and Roman Romanenko will be departing the space station to return to Earth Monday; they are expected to touch town in Kazakhstan at 10:31pm EDT.

Bowie's famously appropriate lyrics are given new meaning by Hadfield.

"Here I am sitting in a tin can, far above the world," Hadfield sings in orbital falsetto as he floats weightlessly through the capsules and stares out at Earth from the space station's windows.

Hadfield recorded the guitar and vocals aboard the space station; the rest of the music was recorded on Earth. Hadfield's son, Evan, who is responsible for much of Hadfield's online presence, was credited as the video's producer.

The guitar Hadfield strums is a custom parlor model made for the International Space Station by Canadian guitar maker Larrivée. It will likely remain on board when Hadfield departs.

Hadfield is a veteran astronaut. In 1995 he became the first and only Canadian to enter the Russian Mir Space Station. He entered outer space again in 2001, where he performed two spacewalks and became the first Canadian to ever leave a spacecraft and float freely in space.

Due to budget cuts within the Canadian Space Agency, this trip to outer space is likely Hadfield's last, Forbes reported, which may have inspired him to create the music video.