Taylor Swift collaborator Jack Antonoff slams Kanye West and says he needs ‘his diaper changed’ amid ongoing feud between the musician and Midnights pop star

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.