Billie Eilish was left star struck after meeting Kate Middleton at Bond movie premiere

Popular American singer and songwriter Billie Eilish was adorably left star-struck after meeting the Royals at the No Time to Die premiere on Tuesday, September 28.

The pop star and her big brother Finneas met the Duke and Duchess of Cambridge, Prince William and Kate Middleton at the London premiere of the newest James Bond film premiere, which the siblings wrote the theme song for.

The future king and queen of England spoke to the siblings inside the Royal Albert Hall, where movie stars Rami Malek, Lea Seydoux, Phoebe Waller Bridge, Ana de Armas and more arrived to watch Daniel Craig's final film as Agent 007.

The Ocean Eyes singer was more than happy to meet the royals at the event. Sharing photos from the star-studded premiere night, Eilish wrote, "still pinching myself that i was involved in this film at all @007 THE WAIT IS OVER!!"

The snaps posted by Billie included her posing alongside her brother Finneas, her meet with the duchess and also click with the film's cast members such as Malek, Ana de Armas, Lashana Lynch and more.

Moreover, the royals were equally excited to support the cast of the Bond film, with the Cambridge's writing on their official Instagram, "Wonderful to see @007 back on our big screens! No Time To Die is the 25th Bond film and Daniel Craig's last after 15 years in the role. It showcases the inspirational work of actors, musicians, directors, cinematographers and all those involved in making the film so special."

They added, "Tonight's world premiere will benefit charities supporting serving and former members of the three intelligence agencies: the Secret Intelligence Service, the Security Service, and @gchq."

William and Kate were joined at the glamorous event by Prince Charles and Camilla, Duchess of Cornwall who previously visited the set of the Bond film in 2019.