Billie Joe Armstrong is taking a stand.

The Green Day frontman, 50, said that he is “renouncing” his citizenship from the United States during a recent concert in London, following the Supreme Court’s ruling to overturn Roe v. Wade.

“F— America. I’m f—ing renouncing my citizenship. I’m f—ing coming here,” Armstrong told concertgoers during a show at the London Stadium on Friday, which was part of his band’s Hella Mega tour with Fall Out Boy and Weezer.

“There’s too much f—ing stupid in the world to go back to that miserable f—ing excuse for a country,” he continued, before assuring fans before him that he was serious.

“Oh, I’m not kidding, you’re going to get a lot of me in the coming days,” the “American Idiot” musician — who has long been politically outspoken — added.

Roe v. Wade, the landmark Supreme Court decision of 1973 that granted women the right to an abortion in every state, was overturned by the U.S. Supreme Court on Friday.

The 6-to-3 ruling reverses nearly 50 years of legal precedent and will completely change the landscape of women’s reproductive rights by giving individual states the power to decide whether to allow the procedure. It is estimated that nearly half the country will enact near-total bans in the coming months.