Some concertgoers clutched signs reading "For our angels" in tribute to the 22 people who were killed and dozens more injured when a suicide bomber set off a blast after Grande's concert at Manchester Arena on May 22. "God is in the midst, and he loves you and he is here for you".
Around 50,000 fans crammed into Old Trafford cricket ground under the watchful eye of hundreds of police, including a significant number of armed officers, a sight that would be unusual under normal circumstances.
Celebrities jumped on social media to offer their support, and Ariana's Manchester benefit concert, One Love Manchester, still went ahead, with performances from the likes of Miley Cyrus, Justin Bieber, Pharrell Williams, Katy Perry and more. Variety reports that the BBC One aired the concert live and garnered a huge audience. "And that love that you choose will give you strength".
As well as performing many of her hits, she dueted with her boyfriend Mac Miller and Miley Cyrus and closed the concert by performing Somewhere Over the Rainbow, the classic song from the film The Wizard of Oz.
Miley Cyrus: "The most important responsibility we have on this entire planet is to take care of one another, and look at what we're doing today and how unbelievable that is". "All we feel tonight is love, resilience, and positivity". I just want to take a moment to honor the people who were lost, who were taken.
"It's better to come, it shows we're not afraid", 24-year-old Alizee Cano told AFP. We love you so much.
The sombre cause that the concert was being held to benefit was never far from the crowd's mind.
"I am not scared", Ellie Galespie, 14, said ahead of the show.
The singer and some of her famous friends held a benefit concert in the English city to benefit the victims of a terrorist attack that took place following her performance there almost two weeks ago. "Love spreads. Hatred will never win, fear will never divide us, because on this day, we all stood with Manchester".