I couldn't think of any song parody relevant to this boss TBH.
Anyway, we'd had a few setbacks the past few days & poor 'Smeagol-wanna-be' Primordius was pretty much gonna get the Past Tense Pounding from hell.

Barmy Blizzards Raid Balancing Dept strikes again! - We nuked this poor bugger into next week, and then wiped numerous times on the Dark Animus Trash. Admittedly we weren't that prepared, as we probably didn't expect to progress so quick... However, from what we saw looks like Animus will be a challenge.

Well done all - Nice kill, some loot (albeit NO SHIELD),
and as mentioned the real test will come with Dark Animus.