The campaign, called the Sound Strike, has been organized by Zack de la Rocha, the lead singer of the rap metal band Rage Against the Machine, and is endorsed by English-language rock and rap performers like Massive Attack, Kanye West, Conor Oberst, Sonic Youth and Joe Satriani. But the signatories also include Spanish-speaking reggaetón artists and Los Tigres del Norte, perhaps the most popular and influential exponent of Mexican regional music in the United States.

In an open letter initiating the campaign, Mr. de la Rocha, whose father is Mexican-American, wrote, “Fans of our music, our stories, our films and our words can be pulled over and harassed every day because they are brown or black, or for the way they speak, or for the music they listen to.” He added, “Some of us grew up dealing with racial profiling, but this law (SB 1070) takes it to a whole new low.”