Jack Antonoff has slammed Kanye West and said he needs ‘his diaper changed’ amid the ongoing feud between the controversial musician and Taylor Swift.

Singer-songwriter Jack, 39, is one of Taylor’s most prolific collaborators and a fiercely loyal friend to the Love Story hitmaker.

Kanye has feuded with Taylor, 34, ever since he crashed the pop idol’s acceptance speech at the 2009 VMAs when she won the best female video prize for You Belong With Me.

In recent weeks, Kanye, 46, has claimed he has actually been ‘been far more helpful to Taylor’s career than harmful’, and denied claims that she got him kicked out of the Super Bowl when he tried to ‘upstage’ her.

But hitting back at the rapper’s continued tirade, producer Jack said he ‘just needs his diaper changed so badly’.

Loyal friend Jack dares anyone to question Taylor’s 14-time Grammy-winning songwriting abilities.

Two years ago, Gorillaz and Blur frontman Damon Albarn scoffed to the LA Times that the 34-year-old pop star ‘doesn’t write her own songs.’

Outraged, Jack took to Twitter to call the 55-year-old Englishman an ‘herb’ and wrote: ‘I’ve never met Damon Albarn and he’s never been to my studio but apparently he knows more than the rest of us about all those songs Taylor writes and brings in.’

‘I’m a little b**** sometimes,’ Jack told the LA Times on Wednesday.

‘But you come after my friend Taylor, you’re toast to me. [That] is like challenging someone’s faith in God. You just don’t go there.’

Ten-time Grammy winner Jack – who turns 40 next month – originally met Taylor in 2012 and they first collaborated on her track Sweeter than Fiction for David Frankel’s biopic on Britain’s Got Talent champ Paul Potts, One Chance.

Jack went on to write and produce songs on the blonde billionaire’s albums 1989, Reputation, Lover, Folklore, Fearless (Taylor’s Version), Red (Taylor’s Version), Speak Now (Taylor’s Version), 1989 (Taylor’s Version), and Midnights.

It’s unclear if Jack was involved with Taylor’s surprise 11th studio album Tortured Poets Department, dropping on April 19, which she announced onstage at the 66th Grammy Awards.

It comes after Kanye claimed to his followers that he has been beneficial to Taylor’s career, and even sided with her amid her professional battle with Scooter Braun over ownership of her material.

‘Remember I was on Taylor’s side when Scooter bought her masters behind her back,’ he said.

‘She and Beyoncé are big inspirations to all musicians we always say how both sell out tours and movies.

‘Also, I’m sure I’ve been far more helpful to Taylor Swift’s career than harmful. To all Taylor swift fans I am not your enemy um I’m not your friend either though lol.

The Grammy-winning musical artist also denied that Swift had him escorted out of Sunday’s Super Bowl in Las Vegas, where he was accompanied by his wife Bianca Censori, 29.

‘Also I didn’t get kicked out of the Super Bowl we left our seats to go to YG’s box and see different friends,’ he said. ‘My wife had never been to a Super Bowl so I wanted to walk around and have a nice time we had such a fun day.’

The feud between Kanye and Taylor began at the 2009 MTV Video Music Awards on September 13, 2009 at Radio City Music Hall in New York City.

In the infamous exchange, Kanye infamously interrupted Taylor during her victory speech for the Best Female Video award for You Belong With Me, which had been nominated against Beyonce’s Single Ladies.

Kanye emerged on the stage and took the microphone from Taylor, telling her, ‘Yo, Taylor, I’m really happy for you, I’mma let you finish. But Beyonce had one of the best videos of all-time! One of the best videos of all-time.’

While the musical stars appeared to be on better terms in the years following – they were pictured at a number of events in the years after – things blew up after the release of Kanye’s 2016 song Famous.

Kanye claimed at the time that Taylor had given him her blessing to refer to her as a ‘B****’ in the lyrics of the song, in a reference to the VMAs incident.

Taylor said she never made such an agreement, leading to a public feud with West after he and his former wife Kim Kardashian in July of 2016 released a call the rapper and singer-songwriter had over the contents of the Famous song.

Kim alluded to Taylor as a snake upon the release of the call, saying in a tweet, ‘Wait it’s legit National Snake Day?!?!?They have holidays for everybody, I mean everything these days!’

In 2019, Taylor spoke to Vogue about how she dealt with the high-profile scandal, saying she channelled her energies into her material.

‘A mass public shaming, with millions of people saying you are quote-unquote cancelled, is a very isolating experience,’ she said of the difficult time. ‘When you say someone is cancelled, it’s not a TV show. It’s a human being.

‘You’re sending mass amounts of messaging to this person to either shut up, disappear, or it could also be perceived as, “Kill yourself.”‘

She opened up about the creative process in the wake of the scandal, which purportedly inspired the tracks This is Why We Can’t Have Nice Things and Look What You Made Me Do.

‘I knew immediately I needed to make music about it because I knew it was the only way I could survive it,’ Swift told the outlet. ‘It was the only way I could preserve my mental health and also tell the story of what it’s like to go through something so humiliating.’