"The Biggest Serenade in the World" brought out 270,000 people, according to Civil Protection officials.

Alejandro Fernández & Alex Fernández

Alejandra Álvarez/OCESA Seitrack

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In a very Mexican kind of night, with mariachi leading the way, Alejandro Fernández took over Guadalajara, Mexico on Thursday (June 25) for a free concert dubbed La Serenata Más Grande del Mundo (“The Biggest Serenade in the World”), drawing a record-breaking 270,000 attendees, according to local Civil Protection authorities. The feat tops the mark Fernández himself set 17 years ago at the same venue, La Minerva, when he pulled in 200,000 people.