Pop music’s boldface names took to social media to express shock and offer condolences after a Monday terrorist attack at an Ariana Grande concert in Manchester killed at least 22 people and injured 50 more. Grande has since postponed the European leg of her tour and tweeted that the attack has left her “broken.”

Monday’s outpouring of grief and support felt somehow rawer and more personal than ever. James Corden paid tribute to the city of Manchester, offering his thoughts and prayers to “the staff at the MEN Arena, all of the security teams, all of the emergency services, Ariana and her team and all of those families affected by tonight.“ Nicki Minaj tweeted that her heart hurts for her “sister, Ariana” while Demi Lovato wrote that she was tearing up while “imagining innocent concert goers losing their lives.” The attack even brought Taylor Swift out of her self-imposed exile. "My thoughts, prayers and tears for all those affected by the Manchester tragedy tonight. I’m sending all my love.”

One of the most striking responses to last night’s attack came from Lorde, who tweeted that “every musician feels sick & responsible tonight.” Grande echoed that sentiment by telling her fans that she was “so so sorry,” for what happened. When Rihanna wrote that “this could’ve been any of us,” she could have been speaking from the artist perspective as well as the fan perspective. Drake revealed that terrorist attack prevention has become a reality for the world’s biggest pop stars. “We just left from touring in Europe and this was such a real fear we discussed frequently,” he wrote. “I was crushed today to hear it became a reality.

Celebrities don’t often experience the same fears and anxieties as the average person, but terrorism is the great equalizer. After Monday’s attack, going to concerts will never be the same again. Performing them won’t be either.