The mammoth event is spread over two weekends, with city concerts in between and a beach party grand finale
Spain is currently on the UK Department of Transport's amber list
The club originally closed in October 2016
DJ Michelle is competing in this year's DMC World Portablist DJ Championships
Concertgoers had all tested negative for coronavirus prior to the non-socially distanced research event
The venue will be in the capital's West End
Spain's culture minister hopes that the new digital green certificate will "guarantee safe mobility as of June"
The free and voluntary “Excelsior Pass” is available now
The NTIA has said that vaccine passports will create "more barriers to businesses, and potential conflict between staff and customers"
The event took place at the Palau Sant Jordi arena (pictured)