I just thought of this (not sure if it's been said before) but how about HAIL! joining the cruise?
I, for one would think it woud be fucking cool to have an all-star band aboard playing songs we can ALL karaoke to at the same time! Not to mention, open up some pits and pay tribute to our fallen metal gods over the last few years and beyond! No one else that I know of will play some Dio, Type O, Pantera, old Ozzy, old Metallica, and even *ahem* Slipknot covers! And fuck it, if ya hate them or you're drunk, at least you'll mosh while they're playing.
I gotta feeling the metal karaoke will be a laugh-fest or a travesty, and this would be enjoyable. No?