Ukrainian teenagers hit each other with pillows during a large pillow fight in downtown Kiev, Ukraine, 24 April 2016. About hundred people took part in the event “Pillow battle 2016” in Kiev. (Photo by Roman Pilipey/EPA)





People take part in a pillow fight during a flash mob in Kiev, Ukraine, April 24, 2016. (Photo by Valentyn Ogirenko/Reuters)





People react as they take part in a pillow fight during a flash mob in Kiev, Ukraine, April 24, 2016. (Photo by Valentyn Ogirenko/Reuters)





People take part in a pillow fight during a flash mob in Kiev, Ukraine, April 24, 2016. (Photo by Valentyn Ogirenko/Reuters)





People take part in a pillow fight during a flash mob in Kiev, Ukraine, April 24, 2016. (Photo by Valentyn Ogirenko/Reuters)





People take part in a pillow fight during a flash mob in Kiev, Ukraine, April 24, 2016. (Photo by Valentyn Ogirenko/Reuters)





People take part in a pillow fight during a flash mob in Kiev, Ukraine, April 24, 2016. (Photo by Valentyn Ogirenko/Reuters)





A woman reacts as she takes part in a pillow fight during a flash mob in Kiev, Ukraine, April 24, 2016. (Photo by Valentyn Ogirenko/Reuters)