Why do male musical groups try to look threatening on their album covers? (idea) by strawberry

Why is it that boy bands feel that no album is complete without a cover showing them sitting around in faux pissed off mode?

I don't listen to bands such as these, but you've see the marketing materials hanging in the record stores. They look like a yearbook photo of a middle school production of West Side Story.

It's just a bit silly, really.

"ooh, look — they must've been really angry about something on the day this was taken! Goodness, I wouldn't have wanted to be in the photographers shoes that day!"

I can't help but think that if Simon and Garfunkel's 1968 album Bookends came out today, the cover would look a bit different. Picture Garfunkel's fingers clenched in a fist, Simon's head tilted angrily, his mouth a scowl as if he's spitting out the noise "ffff!"

Inspired by the node:
Why do female musicians market themselves with sex?

Two hours and thirty-eight minutes to live	Arcade games with female protagonists	The popularity of boy bands	Choplifter
Metacognition and the problem of self-reference: A Kantian view	Mellon Collie and the Infinite Sadness	Why do so many people wear glasses?	How do you know the fishes are enjoying themselves?
Terrible things men say to women they're supposed to love	Why Do People Pigeonhole themselves?	Bookends	I don't think you could do this with a modern SUV
What do girls think about guys who think about what other people think about girls and what they do?	Ether Song	faux	album
Simon and Garfunkel