West, 37, talked about discrimination in the fashion industry, which did not go well with the fans, who were waiting to see him perform, reported the Daily Mirror.
"I'm not going to mention any names but Nike, Louis Vuitton and Gucci. Don't discriminate against me 'cos I'm a black man making music," West said on July 4 night at the festival.
Fans showed their anger on Twitter, with one writing, "If anyone is going to wireless tomorrow get a refund! Kanye sings for 20 minutes then literally does a speech for 35 minutes!!"