The organization Music Monday arranges for a simultaneous music celebration across Canada on the first Monday of May. This year they arranged for everyone to sing the “I.S.S.” song along with a Canadian astronaut in space:

Aboard the International Space Station, Expedition 35 Commander and musician Chris Hadfield picked up his Larrivée guitar and joined a national Canadian music celebration called “Music Monday”. This year, Hadfield was chosen to play the song “I.S.S.” co-written with Ed Robertson, the lead singer from the group “Barenaked Ladies.”The song is expected to be included on an album Hadfield recorded on orbit in his spare time.

Here is the debut of the song “I.S.S.” back in February with Chris Hadfield on the station and the Barenaked Ladies plus a children’s choir on earth: