There have been plenty of emotional moments during Ariana Grande's #OneLoveManchester concert, held less than two weeks after a terrorist attack killed 22 of her fans.
Stars including Justin Bieber, Coldplay, Miley Cyrus, Katy Perry, Robbie Williams and the Black-Eyed Peas all took the stage in the grieving city to raise money for the Red Cross' Manchester Emergency Fund to help victims and families impacted by last month's tragedy.
But it was something that happened offstage which is attracting the most attention.
A heartwarming video showing a uniformed policeman dancing with young concertgoers to Bieber has been shared thousands of times.
