The Oscar-nominated singer is expecting her second child with A$AP Rocky.
The Oscars are being held at the Dolby Theater in Los Angeles, California on March 12 starting at 8 p.m. ET on ABC.
Jimmy Kimmel is hosting for the third time and for the first time since 2017.
Rihanna, 34, Ryan Coogler, and Ludwig Goransson are nominated for Best Original Song for Lift Me Up from the movie Wakanda Forever.
But fans didn’t have to wait for the live performance for the superstar singer to floor them.
QUICK CHANGE!
Riri was one of the last to arrive at the A-lister-drenched pre-show with a champagne-toned carpet instead of red for the first time since 1961.
She was caught on video walking into Los Angeles’s Dolby Theatre earlier on a gray Eagles T-shirt, Black Vans sneakers, an olive green bucket hat, sunglasses, and giant hoop earrings.
It wasn’t long before she switched things up and flaunted her beautiful belly in one of the night’s best numbers.
Her red carpet look was comprised of a chic black Alaïa dress with a leather skirt with a long train.
Pieter Mulier is the fashion house’s Belgian designer, and he has worked closely with Raf Simons, presenting his first collection in 2022.
They sell everything from shoes to bags and are an up-and-coming name.
There was sheer mesh paneling at the torso and her growing baby bump and belly button shone through.
The floor-length dress also featured leather straps, a mesh turtleneck, and mesh at the sleeves – as well as daring cut-outs a tthe thighs.
She accessorized with two massive diamond rings with large brownstones and diamond-and-emerald drop earrings.
Riri had her hair up in a spiky bun and wore shimmering silver eye shadow, rosy blush, and a bright red lip.
‘TRULY STUNNING’
One fan tweeted on the quick change: “Rihanna arriving to Oscars dressed and walking like my mom when she was called up to the principal’s office.”
“She got ready QUICK,” wrote another.
“Truly stunning,” wrote a third.
“She knows she’s that girl,” wrote a fourth as a fifth called the star “unbelievably gorgeous.”
‘HOW’S THE VOICE!?’
In a video from Variety, a reporter asked twice as Riri walked the champagne carpet: “How’s the voice?”
Rihanna replied: “Beautiful, God-given.”
Lift Me Up, which also nabbed a Golden Globe nomination, marks the first single Rihanna’s dropped in six years.
FANS ARE TORN ON ANOTHER STAR
While most fans praised Riri’s look there were some outfits at the Oscars that got mixed reviews.
Florence Pugh, presenting tonight, said she went for “romantic and punk” on the champagne carpet as she turned heads in shorts with a Valentino dress.
“Looking camp right in the eye,” one fan tweeted.
Another posted “her stylist set her up” and a third wrote: “love her down but the hairstyle didn’t suit her IMO.”
The look was referencing Club Kid culture and she paired it with a Tiffany necklace.
SUPER BOWL SECRET
Last month, Riri delivered an iconic performance for her first Super Bowl Halftime Show, where she soft-launched that she is pregnant once more with boyfriend A$AP.
She gave birth to her first son in May 2022, and during the 18-minute performance it was noticeable that Riri had a baby bump as she sang her smash hits.
Her rep quietly confirmed she was expecting after the performance to The Hollywood Reporter.
“When I first got the call to do it again this year, I was like, ‘You sure?’ Like, I’m three months postpartum, like, should I be making major decisions like this right now? Like, I might regret this,” she said during the Apple Music Super Bowl LVII Halftime Show press conference.
“But when you become a mom, there’s something that just happens where you feel like you could take on the world, you can do anything.”