Police in Brazil said Sunday that two people have been arrested in connection with an alleged plot to detonate a bomb at a free Lady Gaga concert in Rio de Janeiro. The event, on Saturday, was the biggest show of the pop star’s career that drew some 2 million fans to Copacabana Beach.

Lady Gaga performed to a record-breaking crowd during her free concert at Copacabana Beach in Rio de Janeiro, Brazil, on Saturday (May 3). "Tonight, we're making history," she told the massive audience.

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 two million fans said to have attended.