That tweet has been retweeted over one million times and has over 2.5 million likes on. Grande has canceled her Dangerous Women Tour through June 5. The singer was due to perform in England, Belgium, Poland, Germany and Switzerland over the coming weeks. Ariana Grande’s mother is being hailed as a hero after she helped concertgoers get backstage following the suicide attack at Manchester Arena. Joan had been preparing to visit her daughter backstage and congratulate her on another tour performance, when the suicide bomber targeted the sell-out concert. She is the Chief Executive of Hose-McCann Communications in Florida, a company which makes and provides alarm solutions for the U.S. Navy and Marines. Ariana has remained silent on social media after her last tweet.