Credit: Dimitrios Kambouris/; Steve Granitz/;

Despite having the best stylists on speed dial and access to loads of designer duds, some stars make fashion mistakes every now and then, and 2011 was no exception.

There was Katy Perry, who hit the premiere of The Smurfs (July 24) in a white strapless mini dress decked out with a sequin Smurfette.

Nicki Minaj, who's known for her over-the-top ensembles, outdid herself in the technicolor getup (complete with a surgical mask!) she rocked at the MTV VMAs (Aug. 28).

And Vanessa Hudgens raised eyebrows when she hit up a Los Angeles gas station in teeny ripped denim shorts and racy, over-the-knee leather boots Sept. 22.