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Best Dressed, iheartRadio Awards

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The stars are out for the 2015 iHeartRadio Music Awards, which obviously means our eyes are all over the red carpet fashion!

Taylor Swift is never one to disappoint, which she reinforced on the carpet tonight in an iridescent, figure-hugging Kaufmanfranco mini (another leggy look win for the star) and Tamara Mellon heels.

Meanwhile, on the other end of the color spectrum, actress Brittany Snow stunned in a chic snow-white get-up featuring a clingy Yigal Azrouël midi and strappy Tamara Mellon sandals.

In terms of the black-and-white (and zebra) prints on the red carpet, Iggy Azalea came out on top in a black crochet top, blazer and animal print trousers. Finally, Greer Grammer showed that sheer looks can still be put-together in a form-fitting navy-and-blue dress that she paired with matching sheer panel pumps.

Worst Dressed, iheartRadio Awards

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And, well, you knew it was coming: Time to name the stars who were a little less than chic on the red carpet.

While we love the gold lamé material and matching gold pumps, the fit of Jessica Szohr's Bec & Bridge frock left much to be desired. In the same thread, Meghan Trainor's ill-fitting sequin jacket took attention away from the flattering fit of her body-hugging little black dress.

Unfortunately, the cut and fit of Hailee Steinfeld's striped Christian Dior Couture frock was a bit off, too—not to mention overwhelmed by her dominatrix-esque Dior boots. And we're still scratching our heads over Carice van Houten's navy halter gown, which featured a rather distracting latex skirt. Better luck next year, ladies!

What was your favorite look tonight?

PHOTOS: 2015 iHeartRadio Music Awards red carpet arrivals