Billie Joe Armstrongdidnt mince his words asGreen Dayperformed American Idiot in Johannesburg, South Africa over the weekend.

DuringNew Years Rockin Evethis year, Green Day sang, not a part of the MAGA agenda.

And Musk got big mad.

Billie Joe Armstrong; Elon Musk

Billie Joe Armstrong; Elon MuskGus Stewart/Redferns; Scott Olson/Getty Images

He tweeted, Green Day goes from raging against the machine to milquetoastedly raging for it.

He laterrepeated the gesture.

My heart goes out to you, he said.