Zayn Malik has sent fans into a frenzy by unexpectedly sharing an unreleased song – after it was “leaked by someone”.

The former One Direction star announced on Twitter he was putting the Zayn x August Alsina – Don’t Matter (Remix) out for free on Sunday morning.

The Pillowtalk singer, 25, tweeted: “This was not a song I intended to put out, but due to unprofessionalism has been leaked by someone and my fans mean more to me than a stupid leak, so here it is free for you to enjoy.”

Within an hour #Don’tMatter was the site’s top trending hashtag worldwide.

The singer’s website, where the track was available, appeared to crash as hordes of fans rushed to get a first listen.

Many shared their torment at not being able to hear the song for themselves, with one commenting: “The link isn’t working i’m gonna cry.”