Lana Del Rey 'So Legit:' 'Born to Die' Singer Disses Lady GaGa On Leaked Track, 'Stefani, You Suck' (LISTEN)

A new leaked track by Lana Del Rey features lyrics that seem to diss pop star Lady GaGa, the singer telling her former friend, "Stefani, you stuck," The Guardian reports.

The song, "So Legit," was leaked Tuesday and has already disappeared from YouTube, though copies of the diss track are floating around on several blogs, including Perez Hilton, with lyrics transcribed by the AV Club.

It's unclear when the song was written and recorded, but lyrics like "You were the freak king of the piercing shop/You're looking like a man, you're talking like a baby/ How the fuck is your song in a Coke commercial, crazy?/ I don't get it, your taste once exquisite" clearly mark the acoustic demo as a diss track.

GaGa, whose real name is Stefani Germanotta, reportedly spent a night last year with Lana Del Rey and Lindsay Lohan "watching old movies and playing board games" at the Chateau Marmont in Los Angeles. The two singers have appeared in several photos together, and GaGa stated in 2012 that Lana Del Rey collaborated with her on a new track for her upcoming album "ARTPOP," a song entitled "Princess Die."

"'Princess Die' is on the album, second to last track (#11). I have 2 versions of 'Princess Die', one with Lana Del Rey and one without', both good. Promise," GaGa wrote to fans on LittleMonsters.com at the time, also teasing that she'd worked on a track with rapper Azealia Banks called "Tea" or "Ratchet," which may make the album's final cut.

"Stefani, you suck," Lana sings on the leaked diss track. "I know you're selling 20 million/Wish they could have seen you when we booed you off in Williamsburg."

When asked about working together last summer, Lana denied rumors of a collaboration, saying, "I don't think there is a collaboration. We haven't spoken...I think she's probably busy making her record. I don't think she - I don't think that's on her agenda."