Who Were the Best Dressed Stars at the 2015 GRAMMYs?

ET breaks down all the 2015 GRAMMY night fashion.

From Rihanna's huge pink Giambattista Valli Couture dress to Kim Kardashian's sexy Jean Paul Gaultier robe, there were definitely some standout styles at this year's GRAMMY Awards.

Jeannie Mai, co-host of The Real and ET's fashion expert, is breaking down the night's big hits and misses. Watch above!

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Black dresses were a definite trend on the red carpet, with Beyonce, Nicki Minaj and Jessie J looking amazing in their flattering choices. Miley Cyrus was another stunner in a sexy black cutout Alexandre Vauthier dress.

"I mean, the skin between the paneling of her dress, it was beautiful," Jeannie comments about the backless style on the "Wrecking Ball" singer. "It just looked absolutely effervescent."

Though you don't have to play it safe in black to be a red carpet winner. Chrissy Teigen looked amazing in a slinky white Pucci creation.

"You gotta saunter over and you can't wear any underwear," the always honest Chrissy told ET about her skintight dress. "That's the secret."

But they can't all be winners when it comes to GRAMMY fashion.

Iggy Azalea makes the worst list thanks to her "bird's nest" style hairdo, though at least the "Fancy" rapper's 'do was fuss-free.

"Yeah, I'm trying this whole braid thing this weekend, which has been really easy because you don't have to clip in your hair," she explained to ET. "It's just up there so it's good."

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Watch the video to hear Jeannie's picks for the three best-dressed stars at the GRAMMYs