Get Over Here and Play a Video Game
An a capella medley of seven themes from science fiction. Can you name them all?
John Barrowman sings a song about Superheroes. Torchwood, DC and Marvel? Sounds like the best crossover ever imagined.
Even with Neil Gaiman singing this one, I still maintain that "Supercar," another Gerry Anderson show, had the best theme song of all time.