Grammys red carpet: red, pantsuits and plunging necklines

Red, pantsuits and even President Donald Trump were key style themes for the music world's hottest stars, as they strutted down the Grammys red carpet at the Staples Center in Los Angeles on Sunday.

- Hello from the red carpet -

Adele, who will do battle with Beyonce for most of the top awards of the night, turned to Givenchy for her Grammys look -- a custom pleated live green floor-length gown with a chaste neckline, a criss-cross bodice and a fitted waist.

Her hair was swept up, and her signature cat eye makeup was in place.

The British balladeer, who opened the show with her global megahit "Hello," is nominated for five Grammys, including Album, Record and Song of the year -- the top three categories, in which she will face off with Beyonce.

She won in the other two categories -- best pop vocal album and best pop solo performance -- which were handed out before the main telecast.

- Ladies in red -

Nothing makes a statement like fire-engine red.

Country singer Carrie Underwood earned rave reviews for her beaded high-necked Elie Madi gown with a huge diamond cutout that revealed a ton of cleavage.

Fellow country crooner Faith Hill wore a cleavage-baring red keyhole gown from Zuhair Murad. And Britain's Charli XCX stunned in a sultry strapless Vivienne Westwood gown with a deep sweetheart neckline.

- And they wear pants too -

After actress Evan Rachel Wood's much-adored tux at the Golden Globes, and her pledge to ditch the dresses for all of awards season, the ladies of the music world embraced jumpsuits and pantsuits on Grammys night.

Paris Jackson -- yes, the daughter of the King of Pop is now 18 -- earned plaudits for her youthful sleeveless multi-colored Balmain jumpsuit, the legs slit high and the bodice cut out at the waist. Her blonde hair was cropped and shaggy.

Country music singer-songwriter Brandy Clark rocked an all-black pantsuit with flared trousers. And R&B singer Mya looked sultry in a red pantsuit with a pussy bow blouse that was anything but innocent, with a naughty cutout bodice.

- A few misses -

Jennifer Lopez may have rocked the Grammys red carpet in 2000 with her plunging barely-there green Versace gown, but on Sunday, she missed the mark in a frothy lilac Ralph & Russo halter gown open down to there and a slit up to there.

Katy Perry turned to celeb designer Tom Ford, but the pale pink floor-length feather skirt topped with a somewhat ill-fitting metallic long-sleeve top didn't really work. Her message about "purposeful pop" -- far better.

"That's what we need more than ever... to listen to one another," the newly blonde Perry told E! Network on the red carpet.

And Cee-Lo Green.... looked like a cross between "Star Wars" droid C-3PO and a gilded samurai warrior.

- Make America Great Again (?) -

A pro-Trump statement at the Grammys? It seemed unlikely, and yet, there it was.

Singer Joy Villa arrived in a white cape.... which she took off to reveal a tight red, white and blue gown with "Make America Great Again" emblazoned on the front... and a glittering silver "TRUMP" across the bottom of the train.

On her Instagram feed, Villa -- known more for her red carpet statements than her singing -- said: "My whole artistic platform is about LOVE!"

The ensemble earned immediate scorn on Twitter and Instagram.

But Villa -- who is not a Grammy nominee -- is no stranger to red carpet controversy.

Last year, she wore something that barely qualified as a dress -- strips of metallic material that looked like dinosaur bones and left little to the imagination.

The year before? It was an orange plastic lattice dress, again revealing many of her assets.