Billie Eilish poses backstage with her 62nd Grammy Awards. Picture: Reuters

Billie Eilish is set to perform at the Oscars, where fans speculate she may be unveiling the theme tune to upcoming Bond movie “No Time To Die”.

The 18-year-old singer has been confirmed to be delivering a “special” performance at the Academy Awards on February 9.

The Academy announced the news on Wednesday on social media, with a picture of Billie alongside the text: “A special performance from Billie Eilish live at the Oscars. Sunday, February 9th.”