Oscars 2020: Who wore what on the red carpet

And he delivered. "Pose" star Billy Porter has dominated red carpets in the past year with headline grabbing, gender fluid outfits ranging from a black velvet tuxedo gown to a remote-controlled hat and a golden pharaoh outfit. And for movie's biggest night - he's got gold. He's in a custom Giles Deacon Couture.

TV presenter Giuliana Rancic in Atelier Zuhra.

Lilly Singh is a vision in white. She is in head-to-toe Adeam.

Black Chyna.

John Cho and his wife Kerri Higuchi arrive for the ceremony.

Aurora will perform her Oscar-nominated track' Into The Unknown' from 'Frozen II' tonight.

US actress-singer Idina Menzel (R), who will be performing with Aurora, and Aaron Lohr

Regina King, who won an Oscar for supporting actress for her role in 'Beale Street' last year, on the red carpet. She's in Versace gown with Harry Winston jewellery.

America Ferrera, best known for her role in 'Ugly Betty', cradles her baby bump as she walks down the red carpet. She's in a custom Alberta Ferretti inspired by the indigenous Lenca tribe of Honduras.

US actress Laura Dern with mom actress Diane Ladd. Dern, nominated for a best supporting actress award for "Marriage Story," comes from Hollywood royalty. While dad Bruce and mom Diane Ladd are no strangers to the Oscars, Laura would be the first in her family to actually win the award. In 1992, Dern and Ladd became the first mother-daughter duo to receive Oscar nominations for work on the same film -- "Rambling Rose." Ladd was nominated two other times. Bruce Dern has earned two Oscar nods during his decades-long career -- in 1979 for "Coming Home" and in 2014 for "Nebraska." Dern, who was also nominated twice before this year, starred in two major releases in 2019 -- "Marriage Story" and the Academy Award contender "Little Women."

Spike Lee is wearing a coat with the number 24, in memory of NBA player Kobe Bryant. He's arrived with his wife Tonya Lewis Lee.

Music's woman-of-the-moment Billie Eilish in Chanel.

Janelle Monae brings some Grace Jones vibe to the red carpet in a custom Ralph Lauren.

Sandra Oh's dress is a sleeve statement says Billy Porter, and we agree wholeheartedly. She's wearing Elie Saab.

This is Rebel Wilson's first Oscar. The 'Jojo Rabbit' star is also presenting tonight. And she's in a beautiful Jason Wu dress.

Maya Rudolph says 'Parasite' is her favourite movie this Oscars. She is presenting tonight and dressed in Maison Valentino.

Last year's Best Actress winner (for 'The Favourite') Olivia Colman stuns in a Stella McCartney dress.

Here's tonight's official power couple: Greta Gerwig ('Little Women') and Noah Baumbach ('Marriage Story') are both nominated. Gerwig is wearing Dior.

Penelope Cruz is also part of 'Pain and Glory', nominated for International Feature this year. She's in Chanel.

Best Supporting Actress nominee for 'Little Women' Florence Pugh in one of our favourite dresses so far - a beautiful Louis Vuitton creation.

This. Is. Epic. Natalie Portman has embroidered all the names of the snubbed female directors on her Dior cape.

Renee Zellweger has been sweeping the awards this season for her role in 'Judy'. She looks all set to win again in Armani Prive.

Saoirse Ronan, a Best Actress nominee for 'Little Women', shines in Gucci.

Cynthia Erivo, nominated tonight for Best Actress for her role in 'Harriet', is pure perfection in Versace. She's also performing tonight.

Charlize Theron, who produced 'Bombshell', is also nominated for Best Actress for the film. She's already won, if you ask us, with this Dior Haute Couture number.

Whether she wins or not tonight, Scarlett Johansson has already made history - she's one of the few double nominees. She's in the running for Best Actress for 'Marriage Story' and Best Supporting Actress for 'Jojo Rabbit'. She's wearing Oscar de la Renta.

Captain Marvel Brie Larson is cape perfect in Celine.