Some of those who were at the concert will be performing at a special event on Tuesday evening as part of the Manchester Survivors Choir.
Noel Gallagher appeared on screen to introduce Don't Look Back In Anger - the track that became so popular in the days after the attack as a song of hope and defiance.
Elbow's One Day Like This followed, then Grande's One Last Time.
The school choir which accompanied Ariana Grande at the One Love Manchester benefit last summer (Jun17) were part of a massive city celebration on Tuesday (22May18).
Prince William places a message on a Tree of Hope in the city centre
Bells will ring out across the city center at 10:31 p.m.to mark the exact moment of the explosion a year ago.
Earlier Manchester came together in an emotional day of remembrance, with 800 people attending an afternoon commemoration service at Manchester Cathedral while a one-minute silence - observed nationwide - was held at 2.30pm.
Labour leader Jeremy Corbyn, First Minister Nicola Sturgeon and Liberal Democrat leader Sir Vince Cable were also there.
Prime Minister Theresa May and Prince William will join families of the victims - seven of whom were children under the age of 18 - for a ceremony to remember the May 22 Manchester Arena attack.More news: Kroger shares rose on Ocado deal amid busy week for M&A news
In a message on social media, the American singer wrote: "Thinking of you all today and every day".
She wrote: 'So wish i were there with u all today. u have no idea. love you so v much'.
The hour-long service will include a minute silence that will be observed throughout the United Kingdom.
Prince Harry, carrying out his first public engagement as a married man, also remembered the victims during a speech in London. "It will also give thanks to emergency workers who assisted on the ground and in the aftermath of the attack".More news: Pervez Musharraf Blames Nawaz Sharif For Pakistan Army's Withdrawal From Kargil
He added: "Our thoughts are with those who lost loved ones and those still dealing with the experiences of that night".
Flowers left by people as they pay their respects in St Annes Square on the 1st anniversary. Others left hand-written notes on Japanese maples that have been planted to form a "Trees of Hope" trail through the city.More news: Claim From Spain: Manchester City's Priority Summer Transfer Targets Confirmed
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