American artists Miley Cyrus, Pharrell Williams and Usher will also perform at the June 4 concert, along with Britain's Coldplay, One Direction singer Niall Horan and the Manchester-based band Take That.
Fans who attended the original show will be given free tickets to the benefit concert.
Tickets for Sundays concert will go on sale on Thursday.
All of the proceeds from the concert will go to the We Love Manchester Emergency Fund, which was set up following the attack and has already raised over £6 million. "We wont let hate win", she added.
"This event is an opportunity for people to come together and celebrate things that unite us - music, humanity and the will to do something to help others". A few days later, the singer confirmed that she had canceled her world tour and that she would return to Manchester.More news: President Trump hails heroes at Arlington National Cemetery
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It's great to see Ariana Grande's fellow musicians coming together to stand beside her for such an event, and we're sure it's bound to be a special night for all involved. The concert will broadcast on BBC One and BBC Radio.
Grande addressed the tragedy in a long, heartfelt letter to her fans last week, writing, "I have been thinking of my fans, and of you all, non stop over the past week".
In a statement issued Friday, Grande promised a speedy return to Manchester to spend time with fans and put on a benefit concert, but at the time didn't give additional details.
Ariana Grande has broken her silence and has announced that she will put on a benefit concert for those affected by last week's terror attack during her Manchester concert. So that is what it will continue to do for us.
On May 24, just two days after the suspected bomber Salman Abedi allegedly detonated an explosive that injured 59 people and killed almost two dozen, Grande announced she was suspending her "Dangerous Woman" world tour.