Zayyn Malik
The pop star shared this picture after making his private Instagram public .Instagram

One Direction star Zayn Malik has sparked speculation that he may have secretly married his fiancé Perrie Edwards after a picture of him wearing what looks like a wedding ring emerged online.

The singer sent fans into a frenzy when he made his Instagram account, which has been private since he opened it two years ago, public.

While thousands of Directioners were celebrating his decision to unlock another part of his private life, some eagle-eyed fans spied something even more interesting.

Amongst the 21-year-old's 43 snaps was as black and white topless selfie of him wearing a ring on his wedding finger.

Although he gave little away with the caption 'Blah', it didn't stop fans from freaking out and taking it as a wedding announcement.

One wrote: "Is this a f**king wedding ring or am I goin nuts?? #THANKSZAYNFORMAKINGYOURIGPUBLIC #NIAZKILAM."

In May, he reportedly bought his fiancée's mother Debbie Duffy a new house worth over £200,000 so Edwards would not have to fork out for a mortgage for her mum.

Earlier this month the heartthrob splashed out £50,000 on a funfair-themed 21st birthday party for the blonde beauty.

"It was incredibly romantic. Zayn and Perrie were really enjoying each other's company. It shows how in love they still are," an insider told the Sun.

If the couple did say 'I do' in secret then they may have been advised by fellow pop star Cheryl Cole, who recently married her boyfriend of three months Jean-Bernard Fernandez-Versini in an intimate Caribbean ceremony.

She has since offically changed her name to Mrs Fernandez-Versini.