Perry also left a mark with her resilient performance: She sang a stripped down version of her hit, "Part of Me".
During her set, the "Problem" hitmaker took a moment to speak to the crowds - which included a number of those who were at her show when the attack took place - to thank them for being the "medicine that the world really needs right now".
Revellers dressed for the occasion, with many wearing tops featuring a bee - a symbol for Manchester - and slogans expressing their love for the city. She appeared emotional as she performed "Be Alright" and "Break Free".
She also teamed with Cyrus for an appealingly ragged rendition of "Don't Dream It's Over" by Crowded House - just one moment in this carefully organized production when the performers preserved some of the rawness that can make live music a pleasure to experience.
"Thank you so much, I love you", she said before walking off stage.
He also delivered a message from 15-year-old Adam, who is now recovering in hospital and lost his friend Olivia in the bombing.
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The arrest could violate the team's personal conduct policy and he could receive a fine or suspension, according to the outlet. Headlines containing the words "Cowboys starter arrested/suspended for XYZ" are becoming fairly common in recent years.
"Just a week ago she called me", he continued, before bringing Grande on stage.
"What an unbelievable thing we're doing tonight, would you not agree?" "Don't you guys agree with that?"
"Manchester, your bravery is our hope", Braun said.
"We will continue in honor of the ones we lost, their loved ones, my fans and all affected by this tragedy", she added.
"Today's One Love Manchester benefit concert will not only continue but will do so with greater objective".
Pharrell Williams praised the people of Manchester for their resilience.
"I don't feel or smell or hear or see any fear in this building".
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Appearing in court on Wednesday, Christian shouted: "Leave this country if you hate our freedom-death to antifa". He has yet to enter a plea on charges of aggravated murder and other crimes. "I hope they all die".
"The only thing we'll feel here tonight is love, and positivity".
The song, which was written by Oasis in 1996 and reached the top of the United Kingdom charts shortly after its release, became an anthem for Manchester residents following the May 22 bombing of the Manchester Arena during one of Grande's concerts, killing 22 people.
The sold-out "One Love" benefit follows another deadly attack that rocked London late Saturday when three men drove a van into a crowd before stabbing people in nearby bars and restaurants.
The May 22 attack at Grande's Manchester concert killed 22 and wounded dozens more.
They are among thousands of people from the original concert who returned tonight in defiance, they say, of terror.
Grande on Friday made a surprise visit to injured fans being treated at the Royal Manchester Children's Hospital.
Thorpe's eight-year-old daughter, Lily, suffered a shrapnel wound in her back and is recovering from surgery.
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Central to that will be Bryn Gatland, Warren's son and the Barbarians' fly-half; but this is not a selection based on sentiment. He is one eight brothers, who played rugby, hurling and football at various levels for Portlaoise, Laois and Ireland.