Roger Waters, the former songwriter for Pink Floyd, might face legal action after voicing his support for Palestine Action, an organization labeled as a terrorist group and banned by the U.K. Parliament.

On Saturday, Waters shared a video on X, where the Rock ‘N Roll Hall of Fame member expressed admiration for Palestine Action, calling it a “great organization.” He also praised Bob Vylan for leading the crowd at the Glastonbury Festival in a chant of “Death, death to the IDF.”

Waters said in his video that he was in his studio and was working on a piece of brown cardboard with a Sharpie.

He then switched the camera from his face to the cardboard.

The Houses of Parliament in London, UK. (Chris J. Ratcliffe/Bloomberg via Getty Images)

“The Government has determined that Palestine Action promotes and encourages terrorism, including the glorification of its attacks causing significant property damage on social media,” Hanson stated. “We would not accept such activities from organizations if they were driven by Islamist or extreme right-wing ideologies, and thus, I cannot accept it from Palestine Action.”

“By implementing this measure, we will remove Palestine Action’s veil of legitimacy, tackle its financial support and degrade its efforts to recruit and radicalise people into committing terrorist activity in its name,” he added.

The Campaign Against Antisemitism, which, according to the group’s site, is a “volunteer-led charity dedicated to exposing and countering antisemitism through education and zero-tolerance enforcement of law,” shared Waters’ video on X shortly after it was posted by the former Pink Floyd member.

The group said it reviewed the post, adding that anyone who expresses support for it, contrary to the Terrorism Act 2000, is committing a criminal offense.

They also said they stand ready to privately prosecute offenders when authorities fail to act.

A spokesperson for Campaign Against Antisemitism told Fox News Digital, “The suggestion that the Jewish state wields excessive political influence is a breach of the International Definition of Antisemitism.”

“Roger Waters has a long history of promoting dangerous conspiratorial tropes,” the spokesperson said. “His declaration of support for Palestine Action, now a banned organisation, is his most legally provocative move yet. We expect the police to take action, and if they do not then we will.”