Canadian astronaut Chris Hadfield performs David Bowie's "Space Oddity" on the ISS. He adapts this line a bit to his own situation, while he leaving ISS after a five-month stint as ISS commander.
The Soyuz is Russian spacecraft that takes astronauts and cosmonauts back to Earth. This spacecraft is launched by the Soyuz rocket, the most used and most reliable launch vehicle in the world to date.
The Soyuz hatch is the first and last thing what astronauts sees on International Space Station.