MANCHESTER, ENGLAND | U.S. pop singer Ariana Grande headlined a star-studded benefit concert in Manchester on Sunday that was both joyful and mournful, in aid of victims of the bombing that rocked the city last month, as security fears ran high after attackers in London killed seven people. Her story inspired the singer to push forward with the show when she didn't have the strength to do so, because of Olivia's mother told her she would have loved the idea of the concert and would have loved to hear all of Ari's hit singles. "I love you guys so much and I think that the kind of love and unity that you're displaying is the medicine the world really needs right now".
Grande performed throughout the show, singing her hits from "Side to Side" to "Break Free".
Thornton and Tia Larson, 16, and were at the Manchester Arena when the suicide bomber struck.
"Manchester, I love you with all of my heart", Grande said before the performance, and just after singing "One Last Time" with Miley Cyrus, Pharrell and more of the show's performers standing behind her in solidarity. She also performed "Better Days" with Victoria Monét and sang "Where is the Love" with the Black Eyed Peas.
During the concert, Grande thanked the the audience for being strong and unified. The concert also will be broadcast on more than 130 iHeartRadio stations, and MTV will livestream the event on the website www.onelovemanchester.mtv.com.
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The boy band takeover continued as One Direction's Niall Horan took to the stage, causing some fans to tear up as he dedicated "This Town" to victims of the suicide bombing.
The Greater Manchester Police say more than 130,000 people are expected in the area for the benefit concert as well as a soccer match.
Grande will be joined by Coldplay, Justin Bieber, Katy Perry and many other top acts at the concert at the Old Trafford cricket ground.
The event went ahead despite another terror attack in London on Saturday in which seven people were killed and almost 50 injured. "Love spreads. Hatred will never win, fear will never divide us, because on this day, we all stood with Manchester".
Will.I.Am performing "Where Is the Love?": "We are here and we are together and we are one".