Daytime clubbing has become the new craze amongst workers in Sweden and other European cities.
Lunch Beat is a monthly event that started in an underground car park in Stockholm in 2010 and now regularly attracts hundreds of people.
The latest event on March 20 was held in a Stockholm cultural centre.
Organisers say the party starts at noon and goes on for one hour. There is no alcohol, which means there's a different ambiance compared to night clubbing.
Similar events have been held in at least 10 other Swedish cities and in Finland and Serbia.