According to the Spanish magazine La Heavy, Tony Iommi worked with the drummer, and one of the founding members of Pink Floyd, Nick Mason.
“A few weeks ago, Nick and I recorded a song for a charity album that will raise funds to fight cancer,” Tony said. “They asked me to go and provide some riffs for it. Of course, I gladly agreed.”
Iommi also revealed that other famous rockers are involved in the project, including possibly The Rolling Stones guitarist Ronnie Wood.