"We talk about it every now and again," says Duff. "Slash and Matt (Sorum) and Dave (Kushner) and I played in South Africa at the beginning of June...and of course we talked about it.

"We've tried out a bunch of singers, but I think we're just waiting for the right person to come along. It'll just happen. But the chemistry of Matt and Slash and Dave and I is really good, so you don't want to let that just go away."

In late 2010/early 2011, the lineup recorded demos with Slipknot/Stone Sour singer Corey Taylor, but reports indicated that Slash was unable to commit to adding him to the lineup, and the project was put back on hold as the guitarist continued his endless touring in support of his debut solo album.