Zayn Malik has sparked speculation that he secretly wed Perrie Edwards.

The 'One Direction' star and the 'Little Mix' singer - who have been dating since 2011 and confirmed their engagement in August last year - are rumoured to have tied the knot after Zayn, 21, posted a photo of himself wearing a wedding band on his ring finger on his Instagram account yesterday(15.07.14).

The singer - who appears topless in the photo - posted the black and white shot along with the caption: ''Blah [sic]''.

The rumours have followed Zayn's decision to make his profile on the picture sharing site public sending the band's fans - known as Directioners - into a frenzy over of his current marital status.

In a previously unseen shot from February, the singer's hand also appears to have a wedding bang amongst other statement rings on his fingers, suggesting that the secret nuptials may have happened months ago.

The photo is simply captioned: ''Rings :) x [sic]''

Zayn - who altered the privacy settings on his Instagram account yesterday (15.07.14) - was soon trending worldwide on Twitter with the hashtag ''#THANKSZAYNFORMAKINGYOURIGPUBLIC''.

Meanwhile, Perrie - who celebrated her 21st birthday earlier this week - has only added fuel to the rumours after posting a shot of herself performing in Hyde Park over the weekend with a silver band on her own ring finger.

The pretty blonde recently admitted that she felt ready to tie the knot with the 'Kiss You' hitmaker.

She said: ''We're young, but I think when you know, you know.

''We've been together for a while now, so it is nice.''