Taylor Swift has intensified rumours that she is writing songs about Harry Styles by posting a photo of herself in a studio.

The singer was pictured holding hands and kissing the One Direction star in December but newspaper reports indicates that the couple separated after an argument.

She then said on Twitter that she would head back in the studio - and the star, who is known for her strong-willed songs about relationship breakdowns, added: "Uh oh...".

Swift has now posted a photo of herself on Instagram with an acoustic guitar in a Los Angeles studio, complete with notepad on her knee.

It remains unclear, however, what exactly has inspired her return to the recording studio. Watch Taylor Swift win a People's Choice 2013 award below: