As we previously reported, the 23-year old appeared to 'diss' Styles when singing her split song We Are Never Ever Getting Back Together in front of crowds at the star-studded ceremony.
Swift put on an English accent to play the ex she sings about in tune and said: "So he calls me up and he's like 'I still love you' and I'm sorry, I'm busy opening up the Grammys. We are never getting back together. Like, ever."
Tulisa is thought to have taken Instagram to post a screengrab of a Google search of news speculating about Taylor's apparent dig at Hazza, with The X Factor judge apparently writing: "Never mock my lad!!"
A picture was then uploaded of a mocked-up picture of Harry and Taylor, with the One Direction star on the phone, captioned with: "So she calls me and up she's like…" while the image of Taylor bares the statement: "I still stalk you."
However, the N-Dubz star has since denied making the comments, taking to Twitter to state: "Guys I DON'T have Instagram. It's a fake, so now this story about me 'warning' Taylor Swift over Harry Styles can be laid to rest! LOL."
She added: "Hope everyone is having a good morning! Love ya T x."
Harry has allegedly been persuaded by his 1D bandmates not to hit back at the singer, with a source telling RadarOnline: "The lads have told Harry to forget about retaliating, because it’s just not worth it.
"They’ve all advised him to be the bigger person and not to wash his dirty laundry in public – it’s just tacky and embarrassing... and Harry has been told to keep his thoughts private."
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