A storyline that ran in the Superman comic book titles during the Death of Superman event. Following the Doomsday plot...

Big monster rampages toward Metropolis

I must stop him!

But you may die!

wham wham wham

He does.

...Funeral for a Friend was a very welcome change, in that it introduced characterization. For the next two months, the Superman comics were entirely about the supporting cast and how it dealt with Superman's death and Clark Kent's disappearance.

Following this storyline the Superman titles briefly ceased publication, then resumed with Reign of the Supermen.

Spoiler: Superman got better.