Revellers at the Circus Nightclub at Bramley-Moore Dock, in Liverpool, England, Friday, April 30, 2021. Several thousand music fans have become the first people in Britain in more than a year to legally dance, drink and listen to music in a nightclub. A gig at a warehouse in Liverpool, England that started on Friday afternoon is one of a series of pilot events sponsored by the government and closely monitored by public health officials. The 3,000 attendee, will be tested for the virus before and after the event. (Richard McCarthy/PA via AP)