The Slipknot frontman, 42, picked up the bad habit during his youth and has attempted to quit in the past, even listing it twice among his top four New Year's resolutions for 2013.

In a post on, he wrote, "Goals for 2013: quit smoking, get on 'QI' (British quiz show), bring the world to its knees... and quit smoking. Need that last one TWICE."

Three years on, and Corey appears to finally be succeeding in his latest bid to turn his back on nicotine.

"TWO. WEEKS. NO. SMOKES. DAMN...," he posted on Twitter on Wednesday (11May16).

However, the singer indicated he was finding it tough to stay away from cigarettes after reposting a message from one follower, who asked, "are you past this stage yet?", followed by a quote from comedian Bill Hicks, which read: "It is hard to quit smoking. Every one of them looks real good to me right about now. Every cigarette looks like it was made by God, rolled by Jesus and moistened shut with Claudia Schiffer's p**sy."

Meanwhile, quitting smoking isn't the only 2013 goal Corey is finally ticking off his bucket list - he has also landed the chance to appear on the BBC series QI.

The rocker, who performs with a mask as a member of Slipknot, will feature as a guest on the show later this year (16), when he joins comedians Aisling Bea and Ross Noble, British actor Alan Davies, and host Sandi Toksvig.

Aisling made the revelation on Monday (09May16), when she posted a photo of the group on the QI set on

She captioned the image, "Dear Slipknot fans, we've taken your leader and removed his mask."