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'.
Prime Minister Theresa May and Prince William will on May 22, 2018 join families of the victims of the Manchester Arena bombing at a commemoration ceremony in the city on the first anniversary of the tragedy.
Shaun Ryder, of the Happy Mondays, said: 'I am thinking of you.
And DJ Nick Grimshaw also sent love to those affected by the attack, while also praising the One Love Manchester benefit concert, which was organised by Ariana and Scooter shortly after the attack.
With his wife and father looking on, he paid tribute to the "amazing work" of the emergency services and those who responded on the night.
She wrote: 'So wish i were there with u all today. u have no idea. love you so v much'.
"It was created to strike at the heart of our values and our way of life in one of our most vibrant cities, with the aim of breaking our resolve and dividing us".
She added: 'We also stand in solidarity with each other as Mancunians and tonight we are going to show the world that we stand together.' Some 800 people had attended the hour-long service at Manchester Cathedral, including families and friends, along with front-line responders and volunteers who helped in the aftermath of the bombing.
"The last thing I would ever want is for my fans to see something like that happen and think it won", she said.
Manchester Storm ice hockey team also announced on Tuesday they are retiring their number 22 jersey in honour of the victims.
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.
"We were very lucky, we know how lucky we are", he told Sky News.
The atrocity was one of a spate of terrorist attacks to hit Britain a year ago - the one in Manchester and four in London - that included bombings and deadly violence with vehicles and knives.
People laid flowers and cards in St Ann's Square, which became a focal point for mourners after the attack.