Before the cathedral fell into a minute's silence - which was observed across the nation at 2.30pm - the Dean of Manchester, Rogers Govender, said: 'In this service we come together as people of different faiths and none, as we remember with love before God those whose lives were lost, and those whose lives have been changed forever and have to live with the awful memories of that day 12 months ago. Grande suspended her Dangerous Woman Tour after the bombing and returned for the One Love Manchester charity concert weeks later, which raised funds for victims of the attack. During Grande's July show in Buenos Aires, the singer reprised her take on "Somewhere Over the Rainbow", which she also performed at One Love.
'Eventually I started going to gigs, and one that I most remember going to was seeing Drake at the Manchester Arena.
Grande sent her own greetings, tweeting: "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".
They include "A City United" sponsored by rival football clubs Manchester City and Manchester United; "Suffragette City", a "City of Prayer and Contemplation", "Media City" and "Coronation Street", named after the long-running television soap opera set in the city.
A year on the heartbroken mother admitted she and her family would never get over her death and would have to learn to live with the grief
"Nobody will ever forget what happened but the way Manchester pulled together shows you everything you need to know about the people here. Seeing how everyone reacted made me so proud to be a Mancunian". Rashford and team-mate Jesse Lingard visited survivors of the attack shortly afterwards.
Manchester is marking the day with a series of events including the memorial service at the cathedral and a musical tribute in the evening.
Speaking in advance of this afternoon's service, Archbishop Sentamu said that he would be at the service "standing alongside the Bishop of Manchester and many other leaders from a great city in shared grief at the loss of so many young lives".
"Today my thoughts and prayers are with those who were lost on that bad night, their loved ones who have so bravely battled to rebuild their lives; those who have courageously fought to overcome physical injury or mental scars; our first responders and emergency services and those volunteers and professionals who are continuing to help this community heal", May wrote.
"We are showing Manchester and the world that we carry on", said Cath Day of the Manchester Survivors Choir.
He added: "It is very appropriate that we gather in this cathedral". We were preparing for the Europa League final two days later, but even though we went to Stockholm, Manchester was at the front of our minds.
Prince William the Duke of Cambridge and British Prime Minister Theresa May joined thousands of people who gathered in Manchester Tuesday on the first anniversary of a terror attack in the city which left 22 people dead.
Syrian government declares capital fully under its control
State-run al-Ikhbariya TV said government forces plan to drive the militants from their remaining strongholds in the area. Mr Putin said he expected foreign forces to withdraw from Syria soon as the political process moves forward.