On a reader wondering if 2.1 million people could actually see Lady Gaga on the Copacabana beach in Rio de Janeiro in May, the BBC verified that.
The Lady Gaga concert was paid by the seaside city in an attempt to revitalize its economy.
Fans reportedly saw grand performances from traveling around the country, expected to bring more than $100 million (£75 million) to the local economy.
Rio officials predict victory in 2.1 million attendances.
However, careful analysis by the BBC verification team and crowd density experts showed that this is a very unlikely claim.
Instead, it takes the entire length of the entire beach (not part) to comfortably fit 2 million people.
Despite the BBC’s findings, city officials remained in their claims. However, they have not explained how to measure data.
Watch the full analysis above.
Graphics by Mesut Ersoz, produced by Mohamed Shalaby and Kevin Nguyen.
