The final voices were those of the audience, instructed to sing Space Oddity on cue, to an absent hero.
But the forays into the audience are a nice touch; not many theatergoers can say they've had a singing space alien lying across their laps.
At some point, some evening, Jonathan Eberhart, the Science News correspondent and folk singer, would sing space ballads in his whiskey voice to a roomful of mellowed-out space fans.
Hadfield is the Canadian astronaut who became famous for posting a video of himself singing Space Oddity during his five weightless months on board the International Space Station.
She opened the performance dressed as Ziggy Stardust, complete with newly dyed red hair, singing "Space Oddity" before breaking into "Changes", Ziggy Stardust, Suffragette City, Rebel Rebel, Fashion, Fame, Let's Dance and Heroes.
In March, at a tribute to David Bowie at Carnegie Hall, a supergroup including Debbie Harry, the Pixies, the Flaming Lips, and Cyndi Lauper joined the entire audience of twenty-eight hundred in singing "Space Oddity" as a finale.
The Diamond Dogs stage set comprised tall monochrome buildings, a bridge that descended from on high to the stage, and an office chair mounted on a cherry-picker crane that enabled Bowie, with the helping of some innovative lighting, to appear to float over the heads of the front rows of the audience as he sang Space Oddity.
Instead of Hadfield singing Space Oddity, what if we had sent David Bowie to the space station?
And then he sang "Space Oddity" while circling the Earth 2,600 times in a row on a 92 million mile trip he took.
While there he also sang "Space Oddity" and uploaded (or can you say "downloaded" in this case) the video to YouTube where it was viewed 25 million times.
