Here are the best picks of the night:
Beyonce – one of the favorites to take home several prizes, with 6 nominations – sashayed in a Proenza Schouler sheer black gown with a deep V neckline and long sleeves.
Photo by Jason Merritt/Getty Images/AFP
Pop princess Katy Perry, fresh off her well-received Super Bowl halftime show, rocked a sheer, white-silvery backless Zuhair Murad dress studded with crystals – and purple hair.
Nicki Minaj slays in plunging black Tom Ford on the #GRAMMYs red carpet http://t.co/4jJ00UFrWE pic.twitter.com/SeZeZ8Q8q3 — GlobalGrind Style (@GlobalGrindStyl) February 9, 2015
Rapper Nicki Minaj, up for two awards, left little to the imagination in a black Tom Ford gown that was cut down to her bellybutton in a wide V and hugged her hips.
"They literally sewed this thing by hand and I get to wear it!" Gorgeous @gwenstefani, wowing in @versace #GRAMMYs pic.twitter.com/SGV87rnRn2 — HELLO! Canada (@HelloCanada) February 8, 2015
Gwen Stefani stunned in this black Versace jumpsuit. The singer performed with fellow The Voice coach Adam Levine.
Taylor Swift set herself apart in a blue-green Elie Saab gown with a high-low hemline. (READ: The hilarious video of Pharrell watching Taylor Swift dance at the Grammys)
Rihanna's enormous Giambattista Valli gown at the #Grammys...thoughts?! http://t.co/lSGptcFCiE pic.twitter.com/4R02jXfGWV — E! Online (@eonline) February 9, 2015
Singer Rihanna balanced both sweet and edgy in this pink, poufy number by Giambattista Valli.
This is why the #GRAMMYs red carpet is always interesting... @charli_xcx in a pink bowtie! pic.twitter.com/KvmZs4JTgE — ET Canada (@ETCanada) February 8, 2015
Charli XCX, well known for collaborating with Iggy Azalea on the hit "Fancy," worked a white suit from Moschino, but gave it a girly twist with a pink bow tie.
Australian rapper Iggy Azalea also added a pop of color to the proceedings, in a royal blue figure-hugging Armani gown, with her blonde hair braided in a crown around her head.
The Grammys have been the scene of some of fashion's classic red-carpet moments: Jennifer Lopez's plunging barely there green Versace gown in 2000 is still a fierce benchmark. See some of the classic looks here. (READ: The Grammys: 15 unforgettable red carpet looks)
The guys didn't disappoint, either.
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"It's very, very surreal," British singer Sam Smith – kitted out in white tie – told E! television when asked about his meteoric rise.
Several of music's top male stars went for shades of gray.
John Legend and Chrissy Teigen
See you Friday @johnlegend at #ValentinesCrush!!! #GRAMMYs pic.twitter.com/1s1IvAuFLR — Power 106 (@Power106LA) February 9, 2015
John Legend opted for a gray Dolce & Gabbana suit with no tie.
His wife, model Chrissy Teigen, was sultry in a white Gucci gown with strategic cut-outs snaking around the curves he sings about in his hit love song "All of Me" – nominated for best pop solo performance.
These were just some of the great outfits of the night. What were your favorites? Tell us in the comments! – With reports from Agence France-Presse/Rappler.com