This is an interesting choice as the artist is fairly unknown, especially in the UK, and she is the youngest ever performer of a Bond title track.
The artists who full name is Billie Eilish Pirate Baird O'Connell was born in 2001 making her 18 (at time of writing).
Her brother Finneas, who is also a recording artist, has co-written the song which so far has no title.
Fan reaction has so far been a little unfavourable with many people wondering why the Bond producers didn't pick someone more famous? Kasabian was a popular choice.
It would seem though that Adele's Skyfall was one of the more popular of recent songs and a return for her would have been favourable.
The #NoTimeToDie title song will be performed by @billieeilish. Billie has written the song with her brother @finneas and is the youngest artist in history to write and record a James Bond theme song. pic.twitter.com/Qd5cYIRlmg— James Bond (@007) January 14, 2020