She has put a hold on her "Dangerous Woman Tour" until June 5, Variety reported. She was scheduled to perform in London Thursday and Friday.
She will continue her tour on June 7 in Paris and follow with dates in Portugal, Spain and Italy.
Click here for a complete list of remaining tour dates and locations.
Grande put the tour on hold Wednesday until she and her team could make a decision on how to proceed.
She returned to her Boca Raton, Florida, home.
A suicide bomber targeted an area near Manchester Arena. The resulting explosion killed 22 and injured 64 others.
Salman Abedi, 22, was identified as the bomber and was believed to have been killed in the blast.
Editor’s note June 2: This story has been updated to reflect the addition of Robbie Williams, Black Eyed Peas and Little Mix to the line up.