Hadfield posted the video himself, literally "floating in a most peculiar way" with his guitar, as a farewell to the International Space Station. Hadfield, the commander of Expedition 35, and American astronaut Tom Marshburn and cosmonaut Roman Romanenko will return to Earth tonight after their five-month mission, reports Space.com.
Russian cosmonaut Pavel Vinogradov will command the station's Expedition 36 mission. Vinogradov will remain behind on the space station with NASA astronaut Chris Cassidy and fellow Russian cosmonaut Alexander Misurkin. They will be joined by three new crewmembers in late May.
Vinogradov called it a "sad day" in space. "You guys are wonderful. We worked together so well," Vinogradov said. "I think we will miss you badly, guys."
During Expedition 35, the station crew performed two spacewalks, including an emergency walk to fix a coolant leak just two days ago.
Hadfield made unprecedented use of social media from space to connect with people on Earth. He used Twitter, posted numerous videos about life in space, and even had a live chat with Canadian actor William Shatner, who played James T. Kirk in the original "Star Trek" television series.
"You, the crew of Expedition 35, have been nothing short of tremendous," Mission Control radioed to the station crew. "Not only have the efforts of Expedition 35 been extraordinary, but you've manage to bring us all along with you on your space odyssey."
You can watch the astronauts return home live, beginning at 6:45 PM EDT, courtesy of NASA.