They included the Manchester Survivors Choir, made up of people who were at the arena on the night of the fateful concert last May 22, and Parrs Wood High School's Harmony Group, whose post-attack tribute went viral past year. "I love you with all of me and am sending you all of the light and warmth I have to offer on this challenging day". The event will include renditions of Grande's "One Last Time" and "Look Back In Anger" by Oasis, which became an unofficial anthem of Manchester after the bombing.
The 30-minute singalong in Albert Square featured...
Manchester is marking the day with a series of events including the memorial service at the cathedral and a musical tribute in the evening.
The fans were victims of a terrorist who detonated a bomb in the foyer of the venue as concertgoers filed out of the arena after Ariana's gig.
"That's why I did my best to react the way I did", Grande said.
Prince William places a message on a Tree of Hope in the city centre
Prince William and members of the Sikh, Jewish, Muslim and Humanist communities also made readings, and a youth choir sang "Somewhere Over the Rainbow" - the same song with which Grande closed the One Love Manchester benefit concert organised two weeks after the bombing. To cheers, Manchester United great Ryan Giggs said: 'Manchester is a city of music and is a city of love, and we are sending out love and prayers on this emotional day'.
Meanwhile, Prince William remembered the 22 victims of the Manchester bombing by attending the Manchester Arena National Service of Commemoration at Manchester Cathedral, according to the reports.
"We are showing Manchester and the world that we carry on", said Cath Day of the Manchester Survivors Choir.
In a statement Mr Mohammed Shafiq, Chief Executive of the Ramadhan Foundation, said that the aftermath of the attack also demonstrated how Manchester is a place of "diversity and unity".
There has been a nationwide one minute silence to mark the anniversary and a concert will be held.
Labour leader Jeremy Corbyn, First Minister Nicola Sturgeon and Liberal Democrat leader Sir Vince Cable were also there.
On the altar stood 22 lit candles, made from the wax of thousands of candles left in the city's St. Ann's Square in the days after the attack.
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