Argentine band Los Fabulosos Cadillacs breaks a record in Mexico.

This Saturday they gave a free concert for 300,000 people in the traditional Zócalo square in the capital, Mexico City.

According to Billboard magazine, the Cadillacs topped in attendance other artists who performed there, such as Paul McCartney, Shakira and Justin Bieber among others.

The Argentines are touring Latin America as part of their 30th anniversary tour of one of their most successful albums: "El León".