The red carpet ensembles of the MTV Movie Awards aren't held to the same standard as the Oscars or Golden Globes. Celebs can have more fun and get funky with their attire and fashion choices, but that doesn't mean that some our fave stars don't stumble.

At the 2014 MTV Movie Awards on April 13, some of our favorite style stars, trendsetters and fashion influencers kind of disappointed us.

We were not feeling Rihanna's lingerie choice. Iggy Azalea and Zendaya went with midi lengths, which is always tricky -- and in these cases, didn't work for their otherwise busy outfits.

These are our picks for worst dressed, but with reasons!

Granted, Rihanna was going to perform 'The Monster' with Eminem for the first time, so she had to change into stage attire, but her white, robe-and-lingerie ensemble by Ulyana Sergeenko felt like a sloppy afterthought or something she could easily change out of. We realize we are saying this about one of the most fashionable women alive, one who writes the rule book, as opposed to following it. We usually love what RiRi does. But not tonight.

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Statuesque rapper Iggy Azalea often blows us away with her style, but the midi length of her dress didn't work with the thick ankle-straps of her platforms and the detailing on her top. The straps reminded us of the house arrest anklet Lindsay Lohan had to wear! That said, there was too much going on. If the dress was a mini, those awesome shoes would have paired perfectly.

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Amanda Seyfried is usually a red carpet sure bet, but her purple sequined blazer and skirt set felt matronly, due to the squared off shoulders and longer length. If the coat were cropped, it might have worked.

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Kat Graham's busy print with a color pop couldn't hold a candle to Lupita Nyong'o's. Sorry! This just felt messy.

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Zendaya's Ungaro dress had several elements that worked -- the slit, for one. But it was a bit too long and loud. If it was shorter, it might have ended the singer up on the "other" list for the night. The long sleeves also felt too heavy for spring in L.A.

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There is nothing technically wrong with Debby Ryan's dress, other than the heavy fabric, dark color and length, all of which combined to make it feel too drab for a fun, spring event. If she hemmed it above the knee, it could have been a home run. She's too pretty for such a goth look at a warm weather awards show.

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Actress Jillian Rose Reed's multi-colored bottom half and hair competed with one another. The eye doesn't know what to look at first.

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Karina Smirnoff is another beauty who almost had us with her outfit. The unique shape of her top, the flash of tummy and the midi length could have put her on trend. Instead, it looked like a 'Project Runway' challenge that wasn't quite finished.

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