The temporary venues will each be open for two weeks and will allow visitors to experience the world of Relentless, as well as sample a free ‘Shot'.
Once inside, visitors will have their photo taken and be given a branded wristband that will direct them to a dedicated website where they can share their photo and vote for the best pictures.
The winner will be invited to a secret gig on the closing day, taking place in each pop-up lounge.
The London lounge is on Charlotte Road in Shoreditch and will be open until 17 September.
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