It wasn’t who was on stage, but rather who did not take the stage that was all the talk at Summer Jam. After Nicki Minaj bailed on her scheduled performance, Hot 97 DJ Funkmaster Flex called her out at Sunday’s show.

“We ain’t fu**in’ with commercial rappers no more,” Flex said during his DJ set. “If you lost the fu**in’ streets, it’s your fault.”

He addressed sales of her latest album Pink Friday: Roman Reloaded. “If you don’t go gold, it’s your fault.”

While he has shown support for the rap diva in the past, he’s now singing a new tune.

“I’m dedicated to tearing you down,” he said, adding, “If you not buying no more commercial albums, hit me on Twitter right now.”

Lil Wayne called for a YMCMB boycott of Summer Jam after Flex’s Hot 97 colleague Peter Rosenberg dissed his protégée on the Festival Village stage prior to the main show.

“I know there are some chicks here waiting to sing ‘Starships’ later,” Rosenberg told the crowd. “I’m not talking to ya’ll right now. F**k that bullshit. I’m here to talk about real hip-hop shit. People here to see A$AP Rocky today. People here to see ScHoolboy Q on this stage. That’s the shit I represent.”