A group of Polish nuns have put on their dancing shoes to encourage young believers to join World Youth Day celebrations scheduled to take place in Poland at the end of July.
In the video, two nuns run onto a beach and are seen putting up a big poster of Jesus. They are then joined by their fellow nuns, who waste no time in kicking up their heels.
The nuns, who shot the video themselves, also invited a group of children to join in the fun.
Footage of the flash mob was published online a few days ago and immediately went viral in Poland. The sisters are part of the St Faustina Order from Mysliborz in the country's region of West Pomerania.