Taylor Swift has hit back at Kim Kardashian and Kanye West after Kim posted videos online of a phone call between her rapper husband and the singer.
The videos show Kanye apparently on the phone to Tay discussing his song Famous, in which he rapped: "I feel like me and Taylor might still have sex, Why? I made that b***h famous."
Kanye was criticised for the lyric after he first played the song at his Yeezy Season 3 fashion show but he insisted Swift had given her blessing.
Taylor denied she had ever heard it.
The lyric is a reference to the 2009 MTV Video Music Awards, when West interrupted Taylor on stage as she collected a gong to say Beyonce was the rightful winner. The incident received wide news coverage, with even President Barack Obama dubbing Kanye a "jackass".
Kanye's wife waded into the long-running feud in the early hours of Monday:
She then posted a string of videos of a phone conversation between Yeezy and Tay-Tay on Snapchat in which West says that he is working on a song and wants to use the lyric: "I feel like me and Taylor might still have sex."
In a statement after Kanye released the song, a spokeswoman for Taylor said: "Kanye did not call for approval, but to ask Taylor to release his single Famous on her Twitter account. ... She declined and cautioned him about releasing a song with such a strong misogynistic message. Taylor was never made aware of the actual lyric."
Taylor has now denied she lied about giving approval to Kanye for the song, saying the recordings proved she never approved the slur he used in the song.
She wrote on Instagram: "That moment when Kanye West secretly records your phone call, then Kim posts it on the Internet."
Earlier this year Tay seemed to respond to the release of Famous when she accepted a Grammy award for album of the year, saying: "There will be people along the way that will try to undercut your success or take credit for your accomplishments or your fame."