The best way to say goodbye to the International Space Station?
Sing "Space Oddity."
Canadian astronaut Chris Hadfield rocks out in outer space and is possibly the most tech savy space walker ever. You can see his educational videos via the Canadian Space Agency or his own YouTube channel where he talks about how to poop in space. He has a Twitter feed where he famously tweeted with William Shatner.
He also recorded Is Somebody Singing (ISS) from space with Barenaked Ladies.