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Coachella 2019 will be headlined by Ariana Grande, Childish Gambino and Tame Impala. Also in the lineup are Weezer, Diplo and Solange, and Idris Elba is doing a DJ set. But Kanye West has pulled out over the stage size. He refused to perform on the standard 60x40 stage as it was "artistically limiting." The annual music and arts festival draws huge crowds along with big name artists. It takes place on the second and third weekends of April.