The Glooming (link)

Welcome to The Glooming..... 

Commercial R&B and Hip-Hop accapella's given "the gloom" 

Gloom

Partial or total darkness; dimness: switched on a table lamp to banish the gloom of a winter afternoon.
A partially or totally dark place, area, or location.
An atmosphere of melancholy or depression: Gloom pervaded the office.
A state of melancholy or depression; despondency.

v. gloomed, gloom·ing, glooms

v. intr.
To be or become dark, shaded, or obscure.
To feel, appear, or act despondent, sad, or mournful.
v. tr.
To make dark, shaded, or obscure.
Archaic To make despondent; sadden.