The Superman Returns star appears in a short film wearing a custom-made Topshop evening dress that she designed in partnership with the high-street fashion chain.
It features Bosworth singing the song while standing on a piano in a scene similar to Michelle Pfeiffer’s piano duets in the Fabulous Baker Boys. The song will be made available to download on iTunes, Shazam and Spotify.
The advert will run across all the brand’s social media channels, shown in cinemas and on digital billboards as well as appear on interactive windows installed in flagship stores.
Topshop has been running teaser promotions for the ad over the last week using the hashtag #whosthatgirl?
It is hoped the marketing push will propel the single to the top of the charts over the festive period.