Best Dressed at the 2015 Grammy Awards

SO much glam, SO much cleavage on the red carpet tonight.

RELATED: The 12 Most Unforgettable Grammy Looks Over the Years

1. Gina Rodriguez

Of course our cover star was one of the best dressed of the night. Get it, girl.

2. Rihanna

Only Rihanna could get away with this Giambattista Valli frock.The girl swims with sharks, kills it in haute couture, and continues to be the #HBIC, at the Grammys.

3. Chrissy Teigen

Gucci for the win on Chrissy Teigan. John Legend is one lucky guy.

4. Jessie J

Bang, bang! Jessie J looked muy caliente in this embellished Ralph & Russo gown and vampy lip. Considering this is just ONE of her 6 outfit changes, it's a great one to start with. We're also loving her Sutra diamond ear cuff and Doves by Doron Paloma earrings.

5. Ariana Grande

How cute were Ariana and Big Sean on the carpet, though? #Smitten (just like how we feel about this Versace dress).

6. Gwen Stefani

Casual Versace jumpsuit moment on Gwen. Not but really, we're DYING over how flawless she looks.

7. Jhené Aiko

This dreamy Alberta Ferretti dress on Dominican-Spanish singer Jhené Aiko was one of our faves.

8. Katy Perry

Katy Perry said she wanted to "shine bright like a diamond" tonight and that she did. In Zuhair Murad, fresh off the runway, as she pointed out.

9. Taylor Swift

Dear Taylor Swift, never wear another color besides this one again. Her teal Elie Sabb high-low dress and purple shoe was just so good. 

10. Beyoncé

Black dresses and exposed boobs may be trending tonight, but you know what else is? Beyoncé's long waves and natural, gorgeous makeup. A+!

11. Kat Graham

Kat Graham is usually known for taking fashion risks, but this floral, sheer, black and white dress is one style success in our book. 

12. Nicki Minaj

In the words of Kelly Osbourne: "Tailored to perfection." Nicki Minaj in Tom Ford — bow down. 

13. Jennifer Hudson

Also in Tom Ford, was Jennifer Hudson who stunned in white.

14. Iggy Azeala

Iggy, you SO FANCY in this cobalt blue Armani Privé number and braided updo. We like it.

15. Rocsi Diaz

Hottie alert! Our chica Rocsi Diaz wowed in this metallic, plunging-neckline dress with TACORI jewels. You can never wrong in a sparkly gown at the Grammys.

16. Miley Cyrus

"We can't stop" staring at Miss Miley in this LBD.

17. Katherine McPhee

Pretty in Emilio Pucci pink.

18. Lady Gaga

"Applause" for Gaga in this glittery gown. Also, can we talk about that green eye? Unexpected and brilliant, just like Gaga herself.

19. Kim Kardashian

Jean Paul Gaultier + Kim Kardashian = a match made in fashion heaven.