Osbourne, whose husband Ozzy Osbourne famously sang the anti-war song “War Pigs,” claimed that “music should serve as an escape, not a stage for political discourse.” She and the world-famous heavy metal singer slammed President Donald Trump for using his hit song, “Crazy Train,” during the 2020 presidential election.

During their set, Kneecap – which openly supported the “Palestinian struggle” a day after Hamas’ Oct. 7, 2023 invasion of Israel that killed about 1,200 people, including 364 who were slaughtered at the Nova music festival – performed in front of a backdrop that read, “F–k Israel Free Palestine.”