Nineteen people are dead and around 50 others are injured, police said.
Tuesday: The king of ragtime, Shakespeare in the park, and an American flag drive.
The singer was not harmed in the incident.
President Trump will sit down with Palestinian President Abbas in Bethlehem to discuss his hopes for peace in the Middle East.
Katy Perry, Demi Lovato and others spoke out.
A suicide bomber was likely behind the deadly explosion in England.
The incident is being treated as a "possible terrorist incident."
At least 19 people were killed and dozens others have been injured in an attack at an Ariana Grande concert in Manchester, England.
Education Secretary Betsy DeVos says the Trump administration is proposing "the most ambitious expansion" of school choice in American history
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The incident is being treated as a "possible terrorist incident."
Researchers at the security company Symantec have found more digital clues that offer hints to who was responsible for the global incident.
The Latest: Campaigning has been suspended in Britain's national election after a deadly explosion at Manchester Arena.
Videos posted on social media showed concertgoers running and screaming. The police said they were treating it as terrorism.
ABC News' Terry Moran reports major fatalities confirmed.