I wanna say... Inland Empire?

Correct!

Specialist Grade Headset : +2 Inland Empire, -1 Reaction Speed
Sub-Insulindic Rendezvous sunglasses : +1 Inland Empire, -1 Perception
Party Dragon's Silk Robe : +1 Drama, +1 Electrochemistry
Eight-Eyed Teratorn Tie : +1 Inland Empire, +1 Volition
White Satin Shirt : +1 Conceptualization, -1 Suggestion
Fingerless Gloves : +1 Electrochemistry
Pour L'Homme Labourer Jeans : +1 Electrochemistry, -1 Reaction Speed
Franconigerian Cavalry Boots : +1 Perception

Total : +4 Inland Empire, +3 Electrochemistry, +1 Conceptualization, +1 Drama, +1 Volition, -1 Suggestion, -2 Reaction Speed

(In other words, it's a great outfit for approaching the you-know-what at the end of the game.)

Best part of the game, hands down.

There we go! That was why it seemed so familiar to me!

Is this the famous Ultimate Kareoke outfit? That'd be Drama then.

Nope! The Karaoke check is Drama, and that would use the Party Dragon Silk Robe, but you'd probably pair it with the Insane Mesh Tanktop (found in the desk drawer on your way out of Revachol Ice City) and the Bow Knot (in the shack with the red chair).

OMG this is really badass. Very nicely done.