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Hundreds queue for days ahead of Harry Styles concert in Barcelona
Some fans have been camping for over a month ahead of Wednesday's show
olympic stadium
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Bruce Springsteen fans start queueing ahead of Friday concert in Barcelona
Music lovers organize roll call with daily check-in times to keep spot instead of camping outside Olympic Stadium
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Barcelona's Olympic Stadium to host first sports and technology start-up incubator next spring
Initiative will facilitate, promote and support up to 14 innovative companies