2.1 million crowd estimated at free Lady Gaga concert on Rio’s Copacabana beach

A sea of people filled Rio de Janeiro’s Copacabana beach on Saturday as pop superstar Lady Gaga played a colossal free concert in the Brazilian city, with more than a million fans expected to attend.

​ A sea of people filled Rio de Janeiro’s Copacabana beach on Saturday as pop superstar Lady Gaga played a colossal free concert in the Brazilian city, with more than a million fans expected to attend. Read More Breaking News, Latest News and Videos | CNN