Pop star Lana Del Rey says she's being sued by Radiohead for copying their breakthrough single, Creep.
It was rumoured over the weekend that the British band were taking action over Get Free, the closing track of Del Rey's latest album, Lust For Life.
The singer then confirmed the news on Twitter, saying: "It's true about the lawsuit."
She said she'd offered Radiohead 40% of the publishing royalties, but their "relentless" lawyers wanted 100%.
It’s true about the lawsuit. Although I know my song wasn’t inspired by Creep, Radiohead feel it was and want 100% of the publishing - I offered up to 40 over the last few months but they will only accept 100. Their lawyers have been relentless, so we will deal with it in court.— Lana Del Rey (@LanaDelRey) January 7, 2018
"Although I know my song wasn't inspired by Creep, Radiohead feel it was and want 100% of the publishing," she said.
"I offered up to 40 over the last few months but they will only accept 100. Their lawyers have been relentless, so we will deal with it in court."
Del Rey also mentioned the legal action at her concert in Denver on Sunday night.
She told fans that "regardless of what happens in court", she stood by the song's message of rejecting negativity and embracing a more positive mindset.
"Those sentiments that I wrote, I really am still going to strive for them, even if that song is not on future physical releases of the record," she said.
Musician Owen Pallett observed that Radiohead's allegations are most likely to be based on the chord progression in the song's respective verses.
However, he noted, the case might not be the result of "Radiohead sitting around feeling annoyed about a stolen chord progression, this just might be their lawyers being lawyers."
Wow— waluigi: my wah (@owenpallett) January 7, 2018
If Radiohead are claiming ownership to I-III-IV-iv, we should go through Radiohead’s catalogue and litigate their own lifts https://t.co/plqA5s4w2e
Interestingly, Radiohead themselves were successfully sued by The Hollies over Creep's similarities to The Air That I Breathe.
Albert Hammond and Mike Hazlewood are now listed as co-writers for the song, and split royalties with the band.
Radiohead have yet to respond to Del Rey's claims.
The US star is the latest high-profile artist to be accused of copying someone else's song. Ed Sheeran recently settled out of court with a pair of songwriters after similarities were found between his song Photograph and X Factor winner Matt Cardle's hit Amazing.
Mark Ronson and Bruno Mars added the writers of The Gap Band's Ooops Upside Your Head to the credits of Uptown Funk; while Tom Petty and Jeff Lynne were given co-writer status on Sam Smith's Stay With Me in 2014.
Most famously, Robin Thicke and Pharrell Williams were successfully sued by Marvin Gaye's estate for $7.4m, after a jury ruled that Blurred Lines plagiarised Gaye's track Got to Give It Up.