Last night's 92nd annual Academy Awards featured many iconic moments that had viewers reacting in a number of different ways.

Millennials couldn't contain their joy when Eminem took to the stage to perform the 2003 Oscar-winning 'Best Original Song' Lose Yourself. People cheered when Tom Hanks rallied the room to get the lights put back on for the cast and crew of Parasite. And, for the most part, people laughed along as Maya Rudolph and Kristen Wiig presented the awards for Best Costume Design and Best Production Design.

Prior to presenting the respective awards, the Bridesmaids stars performed skits in which they pretended to be annoyed at their role in the awards show, before going on to deliver an unexpected musical medley.

However, despite most of the room laughing along, 18-year-old Billie Eilish looked rather perplexed by the duo's routine.

Check out the Bridesmaids stars' medley below, and just wait for Eilish's reaction:

And it goes without saying that Eilish's brief reaction on camera was immediately picked up by the millions of viewers, and now the 'Bad Guy' singer has become the unofficial meme of the entire ceremony. Check out some of our favorites below:

But despite Eilish's baffled reaction, there are many viewers who are now calling for The Academy to let Rudolph and Wiig host next year's awards show:

You can see the full list of all the Academy Award winners and nominees below (winners in bold):

Best Picture:

1917
The Irishman
Jojo Rabbit
Joker
Little Women
Marriage Story
Once Upon a Time…in Hollywood
Parasite
Ford v Ferrari

Best Actress:

Cynthia Erivo, Harriet
Renée Zellweger, Judy
Scarlett Johansson, Marriage Story
Charlize Theron, Bombshell
Saoirse Ronan, Little Women

Best Actor:

Joaquin Phoenix, Joker
Leonardo DiCaprio, Once Upon a Time…in Hollywood
Antonio Banderas, Pain and Glory
Adam Driver, Marriage Story
Jonathan Pryce, The Two Popes

Best Sound Mixing:

Ad Astra
Joker
1917
Ford v Ferrari
Once Upon a Time…in Hollywood

Best Sound Editing:

1917
Ford v Ferrari
Joker
Once Upon a Time…in Hollywood
Star Wars: The Rise of Skywalker

Best Supporting Actress:

Laura Dern, Marriage Story
Florence Pugh, Little Women
Margot Robbie, Bombshell
Kathy Bates, Richard Jewell
Scarlett Johansson, Jojo Rabbit

Documentary Short Feature:

In the Absence
Learning to Skateboard in a Warzone (If You're a Girl)
Life Overtakes Me
St. Louis Superman
Walk Run Cha-Cha

Documentary Feature:

American Factory
The Cave
The Edge of Democracy
For Sama
Honeyland

Best Costume Design:

Sandy Powell & Christopher Peterson, The Irishman
Mark Bridges, Joker
Arianne Phillips, Once Upon a Time…in Hollywood
Jacqueline Durran, Little Women
Mayes C. Rubeo, Jojo Rabbit

Best Production Design:

Once Upon a Time…in Hollywood
The Irishman
1917
Jojo Rabbit
Parasite

Live-Action Short Film:

Brotherhood
Nefta Football Club
The Neighbors' Window
Saria
A Sister

Best Adapted Screenplay:

Steven Zaillian, The Irishman
Greta Gerwig, Little Women
Taika Waititi, Jojo Rabbit
Anthony McCarten, The Two Popes
Todd Phillips & Scott Silver, Joker

[[imagecaption|| Credit: PA Images]]

Best Original Screenplay:

Rian Johnson, Knives Out
Noah Baumbach, Marriage Story
Sam Mendes & Krysty Wilson-Cairns, 1917
Quentin Tarantino, Once Upon a Time…in Hollywood
Bong Joon-ho, Parasite

Animated Short Film:

Dcera (Daughter)
Hair Love
Kitbull
Memorable
Sister

Animated Feature Film:

How to Train Your Dragon: The Hidden World
I Lost My Body
Klaus
Missing Link
Toy Story 4

Best Supporting Actor:

Brad Pitt, Once Upon a Time…in Hollywood
Al Pacino, The Irishman
Joe Pesci, The Irishman
Anthony Hopkins, The Two Popes
Tom Hanks, A Beautiful Day in the Neighborhood

Best Director:

Bong Joon-ho, Parasite
Sam Mendes, 1917
Todd Phillips, Joker
Martin Scorsese, The Irishman
Quentin Tarantino, Once Upon a Time…in Hollywood

Music (Original Song):

'I'm Standing With You' from Breakthrough
'Into The Unknown' from Frozen II
'Stand Up' from Harriet
'(I'm Gonna) Love Me Again' from Rocketman
'I Can't Let You Throw Yourself Away' from Toy Story 4
'Glasgow' from Wild Rose

Music (Original Score):

Joker
Little Women
Marriage Story
1917
Star Wars: The Rise of Skywalker

International Feature Film:

France, Les Misérables
North Macedonia, Honeyland
Poland, Corpus Christi
South Korea, Parasite
Spain, Pain and Glory

Makeup and Hairstyling:

Bombshell
Joker
Judy
Maleficent: Mistress of Evil
1917

Visual Effects:

Avengers: Endgame
The Irishman
The Lion King
1917
Star Wars: The Rise of Skywalker

Best Film Editing:

The Irishman
Jojo Rabbit
Joker
Ford v Ferrari
Parasite

Best Cinematography:

Roger Deakins, 1917
Rodrigo Prieto, The Irishman
Lawrence Sher, Joker
Jarin Blaschke, The Lighthouse
Robert Richardson, Once Upon a Time…in Hollywood

Last night's 92nd annual Academy Awards featured many iconic moments that had viewers reacting in a number of different ways.

Millennials couldn't contain their joy when Eminem took to the stage to perform the 2003 Oscar-winning 'Best Original Song' Lose Yourself. People cheered when Tom Hanks rallied the room to get the lights put back on for the cast and crew of Parasite. And, for the most part, people laughed along as Maya Rudolph and Kristen Wiig presented the awards for Best Costume Design and Best Production Design.

Prior to presenting the respective awards, the Bridesmaids stars performed skits in which they pretended to be annoyed at their role in the awards show, before going on to deliver an unexpected musical medley.

However, despite most of the room laughing along, 18-year-old Billie Eilish looked rather perplexed by the duo's routine.

Check out the Bridesmaids stars' medley below, and just wait for Eilish's reaction:

And it goes without saying that Eilish's brief reaction on camera was immediately picked up by the millions of viewers, and now the 'Bad Guy' singer has become the unofficial meme of the entire ceremony. Check out some of our favorites below:

But despite Eilish's baffled reaction, there are many viewers who are now calling for The Academy to let Rudolph and Wiig host next year's awards show:

You can see the full list of all the Academy Award winners and nominees below (winners in bold):

Best Picture:

1917
The Irishman
Jojo Rabbit
Joker
Little Women
Marriage Story
Once Upon a Time…in Hollywood
Parasite
Ford v Ferrari

Best Actress:

Cynthia Erivo, Harriet
Renée Zellweger, Judy
Scarlett Johansson, Marriage Story
Charlize Theron, Bombshell
Saoirse Ronan, Little Women

Best Actor:

Joaquin Phoenix, Joker
Leonardo DiCaprio, Once Upon a Time…in Hollywood
Antonio Banderas, Pain and Glory
Adam Driver, Marriage Story
Jonathan Pryce, The Two Popes

Best Sound Mixing:

Ad Astra
Joker
1917
Ford v Ferrari
Once Upon a Time…in Hollywood

Best Sound Editing:

1917
Ford v Ferrari
Joker
Once Upon a Time…in Hollywood
Star Wars: The Rise of Skywalker

Best Supporting Actress:

Laura Dern, Marriage Story
Florence Pugh, Little Women
Margot Robbie, Bombshell
Kathy Bates, Richard Jewell
Scarlett Johansson, Jojo Rabbit

Documentary Short Feature:

In the Absence
Learning to Skateboard in a Warzone (If You're a Girl)
Life Overtakes Me
St. Louis Superman
Walk Run Cha-Cha

Documentary Feature:

American Factory
The Cave
The Edge of Democracy
For Sama
Honeyland

Best Costume Design:

Sandy Powell & Christopher Peterson, The Irishman
Mark Bridges, Joker
Arianne Phillips, Once Upon a Time…in Hollywood
Jacqueline Durran, Little Women
Mayes C. Rubeo, Jojo Rabbit

Best Production Design:

Once Upon a Time…in Hollywood
The Irishman
1917
Jojo Rabbit
Parasite

Live-Action Short Film:

Brotherhood
Nefta Football Club
The Neighbors' Window
Saria
A Sister

Best Adapted Screenplay:

Steven Zaillian, The Irishman
Greta Gerwig, Little Women
Taika Waititi, Jojo Rabbit
Anthony McCarten, The Two Popes
Todd Phillips & Scott Silver, Joker

[[imagecaption|| Credit: PA Images]]

Best Original Screenplay:

Rian Johnson, Knives Out
Noah Baumbach, Marriage Story
Sam Mendes & Krysty Wilson-Cairns, 1917
Quentin Tarantino, Once Upon a Time…in Hollywood
Bong Joon-ho, Parasite

Animated Short Film:

Dcera (Daughter)
Hair Love
Kitbull
Memorable
Sister

Animated Feature Film:

How to Train Your Dragon: The Hidden World
I Lost My Body
Klaus
Missing Link
Toy Story 4

Best Supporting Actor:

Brad Pitt, Once Upon a Time…in Hollywood
Al Pacino, The Irishman
Joe Pesci, The Irishman
Anthony Hopkins, The Two Popes
Tom Hanks, A Beautiful Day in the Neighborhood

Best Director:

Bong Joon-ho, Parasite
Sam Mendes, 1917
Todd Phillips, Joker
Martin Scorsese, The Irishman
Quentin Tarantino, Once Upon a Time…in Hollywood

Music (Original Song):

'I'm Standing With You' from Breakthrough
'Into The Unknown' from Frozen II
'Stand Up' from Harriet
'(I'm Gonna) Love Me Again' from Rocketman
'I Can't Let You Throw Yourself Away' from Toy Story 4
'Glasgow' from Wild Rose

Music (Original Score):

Joker
Little Women
Marriage Story
1917
Star Wars: The Rise of Skywalker

International Feature Film:

France, Les Misérables
North Macedonia, Honeyland
Poland, Corpus Christi
South Korea, Parasite
Spain, Pain and Glory

Makeup and Hairstyling:

Bombshell
Joker
Judy
Maleficent: Mistress of Evil
1917

Visual Effects:

Avengers: Endgame
The Irishman
The Lion King
1917
Star Wars: The Rise of Skywalker

Best Film Editing:

The Irishman
Jojo Rabbit
Joker
Ford v Ferrari
Parasite

Best Cinematography:

Roger Deakins, 1917
Rodrigo Prieto, The Irishman
Lawrence Sher, Joker
Jarin Blaschke, The Lighthouse
Robert Richardson, Once Upon a Time…in Hollywood