He’s a classical unicorn mainly because of the aesthetic of IDKHOW being very retro and 80s, and because I headcanon classical unicorns as being like ‘pure’ unicorns from thousands of years ago who are rare now thanks to ages of breeding with earth ponies and pegasi. Also he’s a mormon. He’s also gifted in a rare skill of magic…time travel. That way IDKHOW in the pony world can actually be a lost band as opposed to it just being an aesthetic. He actually travels back in time to form it and play, or did he actually come from the past and travels into the future/present? WHO KNOWS! I’ll put more info on classical unicorns in a headcanon thread later.
Anyway, I only tagged Panic! here as that’s what the major design elements come from, even if during V&V he was just a touring member, who cares.