David Bowie And Kristen Wiig Sing Together In 'Secret Life Of Walter Mitty'

David Bowie and Kristen Wiig duet together in Ben Stiller's new film "The Secret Life of Walter Mitty."

Wiig said she had no idea that the rendition of "Space Oddity" she recorded for the film would be overlaid with Bowie's original vocal track. She said: "I just found that out a couple of weeks ago - I guess they talked to him and it's now a duet on the soundtrack. It's so weird. I have to pinch myself."

She added that she loved recording the song: "It was really fun recording that. I can't even describe it, just singing that song. It's David Bowie and I'm such a huge Bowie fan. It was intimidating. I've caught the bug now. I want to go on tour!"

Stiller's film-about a photographer who searches for a lost negative-costars Stiller, Sean Penn, Adam Scott, and Shirley MacLaine. It opens in theaters in December.

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