Muslim singer Zayn Malik admitted to quitting Twitter after being a victim of racist messages sent from sick-minded trolls.

Now a vile song blaming the One Direction singer for the terrorist attacks on the Twin Towers in 2001 has sparked fury among fans.

The track called 'Zayn Did 9/11' features the singer's silhouette superimposed over an image of the September 11 attacks.

1D fans quickly defended their idol, 19, by holding up signs at the band's latest concert saying "Zayn's Not Racist," and similar supportive messages.

The hugely offensive track is still available to download from the official iTunes store for just 79p despite an online petition to have it removed already has more than 200 signatures.

It’s claimed to be the work of American rapper Rucka Rucka Ali who has since been branded “disgusting” among hundreds of unprintable tweets.

His Twitter account has since been suspended but the song itself remains free to play on YouTube.

The song is described as a 'parody' and is remixed with the instrumental of Selena Gomez's debut single Come & Get It.

Zayn has previously said of the racist abuse he receives on Twitter: “Nasty things were said like I’m a terrorist. How can you justify that?

"How can you call me that and get away with it?

“You can say whatever you want about me, I’m not bothered. But when it starts to upset people I care about or I hear about it from my mum, that’s a problem."

Internet trolls sent Zayn sickening racist remarks after picture emerged of him with Perri and his family celebrating Eid - a Muslim holiday celebrating the end of Ramadan.

The brutal remarks became too much for Zayn and eventually it forced him to quit the (anti)social-network Twitter.

He said: “I believe that your religion should be between you and whoever your belief is in.

“I don't think you should stick it in peoples faces. I think you should just keep it to yourself and that's how I've always been with it.

"I just had seen a few things that had annoyed me.

(Image: Twitter)

“I thought we had moved away from that and we're living in the 21st century and people could accept people from different religions. It shouldn't have wound me up but it did.”

He added his guilt for the real fans who were gutted that their idol had temporarily deleted his account.

He said: “At the same time there are so many fans on there who say nice things every day so why should they miss out?”

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