It's the latest track to be taken from her forthcoming second album
Last month, Billie Eilish revealed that her long-awaited second album was on the way.
The follow-up to her massive 2019 debut 'When We All Fall Asleep, Where Do We Go?' is called 'Happier Than Ever' and will be released on July 30th.
The 19-year-old pop star previously released a snippet of the title track as a teaser last month, and now the latest single, 'Lost Cause', has also been made available to fans - along with the video, which sees her throw a house party with her female friends.
It's the fourth song released from the album so far, including 'My Future', 'Therefore I Am' and 'Your Power' - all of which went Top 10 on the US Billboard chart.
Oh, and in case you missed it - she's bringing her 'Happier Than Ever' world tour to Dublin's 3Arena next June 4th and 5th. Only a year and a day to go, if you managed to get tickets.
Hear 'Lost Cause' below: