Katy Perry

We get that it's Coachella, and everyone brings their arty-muso look to the table. But Katy, you're a POP STAR. Not some wafty, hippie Janis Joplin try-hard. What happened to the blue tresses? And why is big black knickers such a thing? I guess they're better than none at all.

Photo by Getty Images Apr 17, 2012

WHAT WERE THEY THINKING?!

From dirty music festival grounds to the red carpet, this week was packed with style shockers from the stars.