music videos in space

I read today that Commander Hadfield, an astronaut and recent resident of the International Space Station, has posted his final space video and is returning to Earth. His final video was a music video, a parody of David Bowie's "Space Oddity", done in zero gravity and with a guitar. (By the way, how'd they get a guitar up there? Not quite like they could just stop and pick up a fender squier at guitar center!) Anyway, his videos have been fabulous and educational, and I'm sorry that they have to come to an end!