Kidman stars opposite Hugh Grant in The Undoing, which is the latest show from Big Little Lies writer David E Kelley.
However, Kidman lends her voice to the theme song of The Undoing – which is available to watch in the UK on Now TV – in which she performs a rendition of “Dream a Little Dream of Me”.
In a three-star review for The Independent, Ed Cumming wrote that the drama “struggles to reconcile satire with a traditional thriller”.
Sharing the clip on Instagram, Kidman captioned the video: “Danish director + musician husband + filming in a basement studio = nervous singer of #TheUndoing theme song.”