Ariana Grande and company didn't just raise funds for the victims of last month's terror attack in England at the One Love Manchester concert on June 4.
They also raised spirits and created a number of indelible memories.
From on-stage surprises to emotional performances and speeches, we run down the most special and emotional moments from the unique event below...
Here She Is...
Grande received a raucous ovation when she came out on the stage to open the show. Manager Scooter Braun introduced his friend and client, telling the crowd that Ariana is the "bravest person [I] know."
Let's Get It Started
Marcus Mumford opened up the show with "Timshel." It was both poignant and appropriate.
Here is the Love
Grande joined many of the acts on stage, performing at one point with The Black Eyed Peas for a rendition of their classic "Where is the Love."
Two Friends. One Great Performance.
Ariana Grande and Miley Cyrus came together as friends and musicians to sing a cover of "Don't Dream It's Over."
He sang two songs. But Bieber's moving speech (above) it was truly made an impression.
Perry delivered a stripped-down, powerful version of her 2012 smash hit "Part of Me." Watch it here.
That's Liam Gallagher!
The former Oasis frontman made a surprise appearance, showing up in stage opposite Chris Martin and singing "Wall of Glass."
Don't Worry. Try to Be Happy.
It was a somber occasion, but Miley and Pharrell Williams did their best to lighten the mood and relieve some tension via a duet of "Happy."
A True Tear-Jerker
There wasn't a dry eye in the arena when a 12-year old member of the Parrs Wood High School Choir broke down while singing alongside Grande on stage.
Don't Look Back in Anger
The title of this Coldplay song, which was played with Grande as a special guest, was unfortunately perfect for the occasion.
Niall Horan on Stage
Niall Horan received a standing ovation after performing two hits, "Slow Hands" and "This Town."
Grande moved us all to tears with her rendition of "Somewhere Over the Rainbow." Check it out here.
Our Condolences and Admiration
From all of us at The Hollywood Gossip, we'd just like to add our condolences to all affected by this tragedy and send our appreaction to these artists for the amazing event they put on.