USA singer Ariana Grande was performing at the "One Love Manchester" benefit concert at the Old Trafford cricket grounds in Manchester where 50,000 people had gathered in a strong statement against terrorism. "We must not be afraid".
Seven people were killed and 48 were injured in that attack.
Justin Bieber, Katy Perry, Coldplay, Robbie Williams, Pharrell Williams, Miley Cyrus, Take That, Usher, the Black Eyed Peas, Little Mix and One Direction's Niall Horan were all expected to hit the stage. Authorities have said the attack started with a van plowing into pedestrians and then involved three men using large knives to attack people in bars and restaurants at a nearby market.
Grande's management answered doubts on Twitter, just hours before the concert.
Braun's statement, and the decision to move forward with the concert, is further proof that love and kindness should win in the end.
In response, Ariana along with her manager Scooter Braun, chose to stage Manchester One Love less than two weeks after the atrocity in the north west of England.
As details emerged of Saturday's terror incident, Grande responded with a tweet: "Praying for London".
Marcus Mumford from the group Mumford and Sons was the first performer at the gig - which is raising money for the victims and families of the attack. But all had stated their commitment to the benefit concert in the week leading up to the show.
Armed officers tasked with protecting those in attendance at last night's benefit concert in Manchester were pictured happily posing with children after the gig.
The concert saw Ariana Grande making an emotional return to the stage following the tragic bombing that left 22 people dead at her concert at the Manchester Arena nearly two weeks ago.
"There are two large-scale events taking place in Greater Manchester today and we would like to assure people that these will still take place, but with additional security in place to ensure the safety of everyone", Greater Manchester Police Assistant Chief Constable Garry Shewan said in a statement on Sunday.
Manchester police said that "significant" numbers of police personnel would be present at the concert.
Ariana arrived in the United Kingdom on Friday and has spent time meeting her young fans at the Royal Manchester Children's Hospital ahead of the gig.
Braun's words are as courageous as the singer herself.
"Ariana brought everyone a sunflower and a teddy bear", Lauren Thorpe told CNN.
The superstar brought each a sunflower and a teddy bear, according to Lauren Thorpe, whose eight-year-old daughter, Lily, suffered a shrapnel wound in her back as a result of the bombing. "We're broken-hearted for parents who lost their children and children who lost their parents in a senseless, senseless horror".
Insisting that the concert now has an even "greater purpose", he assured that the victims of the London Bridge attack will also be in the hearts and minds of those attending.
The fan added during the broadcast that she cried while "driving past the arena".
Within days, the singer posted a message of defiance and announced plans to return to Manchester for the benefit show. "Our response to this violence must be to come closer together, to help each other, to love more, to sing louder and to live more kindly and generously than we did before". Look at what we're doing today and how important that is! "So that is what it will continue to do for us".