Since before Maldita Vecindad and the Children of the Fifth Patio stepped on the stage, the image of the pachuco with a feather in his hat was already walking in the capital's Zócalo, causing an uproar among the public, who waited for the band for six hours.
A man dressed as the character and invited by the group, came to the front and several cell phones began to work.
So when Roco and company arrived to close activities of the first day of concerts within the Youth Week, the audience exploded.
"Mexico Tenochtitlan !, Greetings to the hearts!" Roco opened, while his partner Sax walked to the front to be close to his fans.
"Welcome to this celebration of peace and dancing," he exclaimed afterwards.
It was only the beginning. The vocalist jumped on his place singing "Solín", the central screen projected images of his concerts and flames of fire were thrown from time to time from the stage floor.
Before there had been small samples of the pot that was the capital plate, when a teenager and a woman were helped to jump the fence that separated them from the stage and escape from shoving.
In another, a young man with a naked torso and a mask of Captain America had tried to reach the stage, barely managing to advance two meters before being stopped by an element of security.
"In the world there is more and more racism and xenophobia in the hearts, we want a world where many worlds fit, there are no walls, where the dog's legs can walk," exclaimed Roco.
"Greetings to the migrant caravan that comes demanding that everyone has a space", added moments later to dedicate "South of the South".
"Rafael" and "Pata de perro" had been interpreted in the first minutes of his presentation, which was attended, according to capital authorities, 100 thousand people.
Before the band, which began playing in the camps of victims of the 1985 earthquake, the Mexican Institute of Sound and Lost Acapulco paraded on stage.
The first, led by Camilo Lara, had encouraged the presence of "neighbors" in the place.
"How nice to be able to see them live, here with you!" Lara exclaimed after singing "Write to me soon" and "I say dance".
More emotion? With "Acapulco golden" and "Tanga tu tanga" the Acapulqueños began to dance and laugh at the audience.
"If they are already tired, we can play a roll of Maná or Ximena Sariñana!", They said before interpreting "Demolición".
And so, both groups left the stage ready for the group that fuses rock, ska, reggae and Mexican music.