By Melinda Arons and Kelly Michelena, Strategic Partnerships, TV, and Betsy Cameron, Data Analyst

The Oscars is Hollywood’s biggest night. 21 million people around the world generated 58 million posts, likes and comments about the 87th Academy Awards on Facebook.

This year, we introduced our Trending Oscars experience to give people one place to connect as they watched the night unfold. As fans connected in real time, nominees, presenters and The Academy brought us behind the scenes like never before.

Our data team looked at how conversation about the Oscars played out in real time on Facebook during the ceremony.

We took a deeper look at the public conversation around the event, and these were the most talked-about moments on Facebook:

  1. Lady Gaga’s “The Sound of Music” medley and Julie Andrews’ appearance onstage for the 50th anniversary of the musical, which topped out at 214K People Per Minute (PPM) globally and 154K PPM in the US
  2. The Imitation Game wins Best Adapted Screenplay
  3. Birdman Wins Best Original Screenplay
  4. Eddie Redmayne wins Best Actor
  5. Birdman wins Best Picture
  6. Alejandro González Iñárritu wins Best Director for Birdman
  7. Patricia Arquette wins Best Supporting Actress
  8. John Legend & Common’s song “Glory” wins Best Original Song
  9. Julianne Moore wins Best Actress
  10. Adam Levine & Maroon 5 perform “Lost Stars” from “Begin Again”

The nominees, presenters and performers took to Facebook to share personal moments from the night.

Reese Witherspoon posted in support of the #AskHerMore movement.

Robert Duvall shared his handwritten questionnaire from the Academy.

Jennifer Lopez posted a selfie with Meryl Streep using Facebook Mentions.

Keith Urban and Nicole Kidman shared a video from backstage.

Russell Simmons reacted to John Legend‘s acceptance speech.

Stephen Hawking congratulated Eddie Redmayne on his Oscars win.

Lady Gaga celebrated her “Sound of Music” performance.

The Academy used Facebook Video to share some of the night’s biggest moments in real time:

But people were talking about the Oscars on Facebook well before the show, and using video to share sneak peeks. Here are some highlights:

The Wall Street Journal mapped the Facebook conversation about the nominated films, actors and actresses since the start of the year.

Oprah posted a backstage photo from rehearsal using Facebook Mentions.

Jimmy Kimmel Live posted a sneak peek of his “After the Oscars” special exclusively on Facebook.

Access Hollywood tested host Neil Patrick Harris’ Oscars knowledge.

Entertainment Tonight shared a “blast from the past” video with Julianne Moore, Meryl Streep, Laura Dern and others.