This Danish article
and a French article
are reporting that Trent Reznor, as well as Julian Casablancas of the Strokes and Mark Lanegan of Screaming Trees, will perform guest vocals on Queens of the Stone Age's upcoming June release Era Vulgaris
. You can catch QOTSA at this year's Roskilde Festival. Thanks to perchee and inc. for sending us the links, and my friend Anders for translating the Danish article for me.