Gloomy Sunday.
Though, It is merely an Instrumental.
If you would prefer lyrics then there is this -
http://en.wikipedia.org/wiki/I_Hate_Mys ... Ever_Heard
Re: Depressing song requests XD
#1
Deviantart
Steam
SoundCloud
SCP Containment Breach Sound Designer.
Favourite SCP is SCP-1845-1.