British heavy metal legends JUDAS PRIEST are “still slaving away in the studio” working on material for the follow-up to 2014’s “Redeemer Of Souls” album. “It’s sounding great,” singer Rob Halford tells Ultimate Classic Rock in a new interview. “I can’t really say any more than that, because it’s still very nebulous, but it is sounding incredibly exciting and I’m sure we’ll talk about that when the time comes.”