Urban was among one of the many country music stars to take the stage in a vigil for the victims held in Nashville.
Urban covered Bridge Over Troubled Water and shared a personal story.
He told the audience, 'I started this morning by finding out about it and being shell-shocked all morning, getting my kids ready for school. My 9-year-old, as I was driving her to school this morning, said to me, 'Dad, you seem quiet,' I said, 'Yeah, a lot of people were killed last night,' She said, 'Did you know any of them?' and I said, 'Not that I know of.' Then she said, 'Then why are you so sad?' I said, 'First of all, these were innocent people horrifically taken and secondly, they're like family.' It's the one thing about country music that's always been the centre of it - it is community. So I did know all of those people, in that way.'
The mass shooting in Las Vegas was one of the deadliest in US history, and is causing an outpour of response from around the world for American gun laws to be changed.