Opeth are playing the Download Festival in UK with Metallica headlining and they are playing the Sweden Rock Festival in Sweden with Judas Priest headlining. I don't think they have ever played to crowds as big as these crowds are going to be. I wish I could go to either one.

ahahah metallica should be opening up for opeth now a days fucking nu metal douches

So true, but warming up for Judas Priest seems quite apprapo.