Ariana Grande is remembering the victims of the Manchester bombing, one year after 22 people were killed when a bomb exploded after one of her concerts in the city.

“Thinking of you all today and every day," Grande posted on her Twitter account. "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."

Hundreds of concertgoers were also injured on May 22, 2017, when a 22-year-old strapped a homemade bomb to his body and detonated it in the foyer of Manchester Arena.

Grande later went on to hold a huge charity concert, One Love Manchester, which raised millions to help the victims of the attack and their families.

A remembrance service will be held at Manchester Cathedral Tuesday afternoon for the victims. Prince William and Prime Minister Theresa May will attend.

"The multi-faith service will remember those who lost their lives in the tragedy," Kensington Palace said in a statement. "It will also give thanks to emergency workers who assisted on the ground and in the aftermath of the attack."

The hour-long service will include a minute silence that will be observed throughout the U.K.

Well-wishers have also been encouraged to share messages of tribute, solidarity and love, and hang them on the Trees of Hope trail throughout the city, the Manchester Evening News reported.

Mayor Andy Burnham said the anniversary is a day to come together.

“Today ... we remember each of the 22 people whose lives were taken & we re-commit to supporting their families & all affected,” Burham tweeted.

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