I really wasn't feeling this. I thought the backing vocals were pretty weak. I expected to see a bunch of comments shitting on this performance, but I'm glad everyone else digs it. Nothing on this album really connected with me, might just not be for me.
I don't think they went a key under just from out of the moment or randomly. In a recent live performance from 'The Seven' Brendan cracked quite a bit and he was singing in the normal key. Though maybe he was just sick.