The former "X Factor" judge showed her support for the "Unite the Kingdom" rally happening next month in the UK, commenting on Instagram: "See you at the march."

Kneecap responded by reposting an opinion piece from Metro newspaper with the headline: "Sharon Osbourne attending a Tommy Robinson march proves Kneecap were right about her."

The group wrote in a caption on X: "F*** @MrsSOsbourne [Sharon Osbourne]."

Osbourne’s apparent endorsement of Robinson also led youth homelessness charity Centrepoint, which she worked with on a recent fundraising campaign, to drop her.

A Centrepoint spokesperson told The Independent the charity has "no plans" to work with Osbourne in the future.

Fuck @MrsSOsbourne pic.twitter.com/EKMPT859BU

— KNEECAP (@KNEECAPCEOL) April 16, 2026

"Political activity like this runs counter to our values and our long history of supporting young people regardless of their background, religion or ethnicity," the statement read.

Kneecap and Osbourne first locked horns after the group commented on Israel’s war in Gaza during their 2025 Coachella performance.

They projected messages like "F*** Israel, free Palestine" on screens behind them on stage, and accused Israel of committing "genocide" in the Middle East.

The band, who are known for hits including "C.E.A.R.T.A" and "Get Your Brits Out", often lead "Free Palestine" chants on stage.

Osbourne, 73, who is a vocal supporter of Israel, claimed in a social media post that Kneecap should have their US work visas revoked and criticized the festival’s organizer, GoldenVoice, for booking them.

* This article was originally published on Extra.ie.