The honor of recording a theme song for the most recent establishment in the James Bond movie franchise was bestowed upon 18-year-old Billie Eilish and her brother, Finneas O'Connell.

Despite being the youngest artist to contribute to the franchise in such a way, the have been preparing for this moment for nearly two years. So when the siblings got the call, they made the most of the opportunity. In fact, they cranked the song out in a matter of three days on a tour bus in Texas.

Eilish mentioned they have been "wanting to make a Bond song for years," and had even asked their team to get them "involved" with the upcoming film. The duo wanted their song to be completely original, so they took the time to listen to every Bond theme before theirs to achieve that goal.

Commenting more on their passion behind the project, Eilish told Apple Music's Zane Lowe that two years ago the siblings were discussing the opportunity. "Like, two years ago, we were like, 'Wouldn't it be crazy to make a song for the Bond movies? Wouldn't that be dope?' And so, kind of for two years-ish, we've been subconsciously trying to."

Just as Eilish turned 18, she and her brother flew to London to discuss their opportunity. The sibling duo is proof that hard work truly pays off and makes dreams reality.

The powerful and haunting song "No Time to Die" — named after the film which hits theaters on April 10 — was released on Thursday.