Manchester's One Love concert tops Facebook's UK most viewed list in 2017
Manchester's One Love benefit concert was the most viewed video and live broadcast on Facebook this year.
The social network said the event, which raised money for victims of the Manchester Arena attack, generated more than 80 million global views.
The suicide bombing at Ariana Grande's Manchester Arena concert on 22 May, in which 22 people were killed, was one of 2017's most discussed news stories.
Facebook studied the use of keywords and phrases when compiling its list.
Its Year In Review was calculated by analysing the posts made each day between January and November.
The terror attack on London Bridge on 3 June - the day before the One Love concert - also received a great deal of attention among Facebook users.
The Manchester concert, attended by 50,000 music fans at Old Trafford cricket ground, saw a visibly moved Grande perform with Miley Cyrus and the Black Eyed Peas.
Other acts included Katy Perry, Coldplay, Robbie Williams, Liam Gallagher and Justin Bieber.
At the gig she told the crowd: "I want to thank you for coming together and being so loving and strong and unified.
"I love you guys so much, and I think that the kind of love and unity that you're displaying is the medicine that the world really needs right now."
Elsewhere on Facebook in 2017, the other most popular subjects of discussion included:
- Politics - both Theresa May and Jeremy Corbyn featured highly
- Deaths - the passing of Sir Bruce Forsyth, Linkin Park frontman Chester Bennington, and Sir Roger Moore
- Gender politics - International Women's Day in March
- Natural disasters - September's earthquake in Mexico prompted the biggest number of interactions with Facebook's Crisis Response tools, as "millions" of users marked themselves as safe, provided offers of help or donated to the relief effort.