Anyone keeping tabs on Sheryl Crow these days? A month or two ago, she proposed to the world that, following a toilet visit, you should use a maximum of one sheet of paper to clean up. Jonathan Davis just went one better.

Korn announced yesterday that they are to be touring this Summer using vehicles that operate on domestically-produced biodiesel fuels.

Says lead singer Jonathan of their brainwave: "We all have children, and I just worry about my kids' kids," he goes on, "[I worry about whether] they will have a place to live [and I hope] that they won't have to live underground. I think it's time we really did start trying to do something about getting rid of oil in general. We have the means to fuel cars in different ways. We have the technology to do it. We're doing our part to set the wheels in motion."

The name of this fuel? Korntastic. No, really.

Oh, and they've got a new album out.