The 87th annual Academy Awards are underway at the Dolby Theatre in Hollywood.

Reese Witherspoon, Emma Stone, Bradley Cooper, Michael Keaton, and the rest of this year's nominees will all be making appearances.

See who brought the glitz and glamour, and who maybe should have stayed off the red carpet.

Lady Gaga in custom Azzedine Ala´a (which took 25 people and 10 weeks to make) with pregnant "The Imitation Game" best supporting actress nominee Keira Knightley in Valentino.

"Wild" best actress nominee Reese Witherspoon in Tom Ford.

Best supporting actress nominee Emma Stone in an Elie Saab dress.

"Still Alice" best actress winner Julianne Moore in Chanel.

"Gone Girl" best actress nominee Rosamund Pike matched the red carpet in her Givenchy dress.

"Two Days, One Night" best actress nominee Marion Cotillard in a Dior Couture dress.

"Boyhood" best supporting actress winner Patricia Arquette brought sister Rosanna Arquette as her date to the Oscars. She is wearing a gown by her best friend, designer Rosetta Getty.

"The Theory of Everything" best actress nominee Felicity Jones in Alexander McQueen.

"Wild" best supporting actress nominee Laura Dern in Alberta Ferretti.

"Into The Woods" best supporting actress nominee Meryl Streep.

Presenter Jennifer Aniston, in Versace, with fiancÚ Justin Theroux.

Aniston embraced Emma Stone as soon as the two saw each other on the red carpet.

Presenter Gwyneth Paltrow looked pretty in a pink, custom-made Ralph & Russo Couture gown.

Jennifer Lopez dominated the red carpet in a caramel color Elie Saab gown.

"A Most Violent Year" actress Jessica Chastain.

Actress Scarlett Johansson in Versace.

"American Sniper" actress Sienna Miller in Oscar de la Renta.

"Birdman" best actor nominee Michael Keaton embracing "Selma" star David Oyelowo.

"The Theory of Everything" best actor winner Eddie Redmayne with wife Hannah Bagshawe.

"The Imitation Game"best actor nominee Benedict Cumberbatch with his pregnant wife, Sophie Hunter.

"Foxcatcher" best actor nominee Steve Carell with wife Nancy Carell.

"Whiplash" best supporting actor winner J.K. Simmons with wife Michelle Schumacher.

Chrissy Teigen (wearing Zuhair Murad) and John Legend, who will be performing his song from "Selma."

Oscars presenter and "Fifty Shades of Grey" star Dakota Johnson in Yves Saint Laurent, with mom Melanie Griffith.

Last year's best supporting actor winner Jared Leto kept his custom Givenchy suit dry from the L.A. rain with an umbrella on the red carpet.



Eddie Murphy with his model-girlfriend Paige Butcher.

"Birdman" actress Naomi Watts in Armani.

Last year's "12 Years A Slave" best supporting actress winner Lupita Nyong'o.

Channing Tatum with wife Jenna Dewan Tatum, wearing a Zuhair Murad Couture dress.

Actress Kerry Washington in Miu Miu.

Presenter Cate Blanchett in a Margiela dress.

"Guardians of the Galaxy" actress and new mom Zoe Saldana with husband Marco Perego.

"American Sniper" director Clint Eastwood and star Bradley Cooper.

"Boyhood" best director nominee Richard Linklater with best supporting actor nominee Ethan Hawke.

"Boyhood" star Lorelei Linklater.

"Foxcatcher" best supporting actor nominee Mark Ruffalo with wife Sunrise Coigney.

"Birdman" best supporting actor nominee Edward Norton with wife Shauna Robertson.

"Whiplash" star Miles Teller with girlfriend Keleigh Sperry.

"Wolf of Wall Street" actress Margot Robbie in Saint Laurent.

Kevin Hart with fiancÚ Eniko Parrish.

John Travolta wore an odd chain necklace.

"Selma" star Oprah Winfrey with her longtime boyfriend, Stedman Graham.

Singer Adam Levine and wife Behati Prinsloo, both in Armani.

Country couple Faith Hill and Tim McGraw, who will be performing during the show.

Oscars host Neil Patrick Harris with husband David Burtka.

Nicole Kidman and Keith Urban.

18-year-old actress Chloe Grace Moretz.

Jeff Goldblum and Adrien Brody laughed at their matching white tuxedo jackets.

Kelly Ripa

E! "Fashion Police" co-host Kelly Osbourne.

Andy Samberg with wife Joanna Newsom.

Actress Katie Cassidy with her "Fifty Shades of Grey" producer-boyfriend, Dana Brunetti.

Singer Rita Ora

Model Karolina Kurkova in a Marchesa gown.

Anna Kendrick in a silk coral gown by Thakoon.

Jennifer Hudson.

Questlove rocking his signature style.

Solange Knowles took a cue from the red carpet in this Christian Siriano creation.

Actress and fashion blogger Jamie Chung wearing Yanina Couture.

More 2015 Oscars...

What the past 42 'best actress' winners wore to the Oscars > Everything inside the $168,000 Oscar-nominee swag bag > Here's what the inside of an Oscar envelope looks like >



See Also:

The 19 Actors With The Most Oscar Nominations Of All TimeHere's what the past 42 'best actress' winners have worn to the OscarsHere's what the inside of an Oscar envelope looks like