Titled 'When Billie Met Lisa', it will arrive on 22nd April and feature both Billie and her brother Finneas.
His first new music of 2022, it arrives alongside a music video filmed in New York City.
The pair will showcase 'No Time to Die', the song they wrote and performed to the latest instalment in the James Bond franchise.
The track will land on Friday, 25th March.
The track was recorded as part of Spotify's Singles series.
The track is taken from his new album 'Optimist', which arrived on Friday (15th October).
His first full-length under his own name, you can check it out now.
A beautifully delicate record.
His first solo full-length is due in October.
'Say What You Will' will drop on Thursday (22nd July).