There's another celeb Twitter war and this time Zayn Malik and Calvin Harris are at loggerheads. It all kicked off when Zayn tweeted photos comparing Miley Cyrus' and Taylor Swift's opinions on music streaming services. Calviun stepped in to defend Taylor... The original tweet shows side by side photos of a TIME article where Taylor chatted about her decision to remove her music from Spotify and a W magazine interview where Miley said “I’ve made my money. If no one buys my album, cool. It’s fine".

the difference is astounding pic.twitter.com/5U9JHNT0Uk

— Bitch Problems (@FemaleTexts) August 13, 2015

It was first posted by Female Tweets with the words "the difference is astounding". Calvin, who's in a relationship with Taylor, saw that Zayn had retweeted this tweet, he decided to reply and that's when things turned nasty...

@FemaleTexts @zaynmalik You've made your money? Cool...fuck the 99% of musicians who depend on these services to survive right? Yeah fuck em — Calvin Harris (@CalvinHarris) August 17, 2015

If u don't get what it means when a successful artist uses their celebrity to benefit every other musician and songwriter in the industry...

— Calvin Harris (@CalvinHarris) August 17, 2015

If u don't get what it means when a successful artist uses their celebrity to benefit every other musician and songwriter in the industry... — Calvin Harris (@CalvinHarris) August 17, 2015

While u kids are refresh voting teen choice awards there's some poor fucker in a basement making your new favorite record trying to survive

— Calvin Harris (@CalvinHarris) August 17, 2015

While u kids are refresh voting teen choice awards there's some poor fucker in a basement making your new favorite record trying to survive — Calvin Harris (@CalvinHarris) August 17, 2015

@CalvinHarris ha you just made an absolute fool of yourself mate

— zayn (@zaynmalik) August 17, 2015

@CalvinHarris you clearly didn't understand what I just said either — zayn (@zaynmalik) August 17, 2015

@CalvinHarris so i suggest you calm your knickers before them dentures fall out

— zayn (@zaynmalik) August 17, 2015

Oh and I write my own shit too dickhead — zayn (@zaynmalik) August 17, 2015

@zaynmalik best of luck, genuinely. You've got a great voice

— Calvin Harris (@CalvinHarris) August 17, 2015