Bob Vylan's career may be in trouble following their controversial performance at Glastonbury, experts tell Newsweek. Over the weekend, the English punk rap duo sparked outrage at the music festival in the United Kingdom. During their set, they led crowds in a chant of "death, death to the IDF," referring to the Israeli Defense Forces.

The prime minister is involved; so is the U.S. deputy secretary of State. The BBC is changing policies. But Bob Vylan remains steadfast.

Bob Vylan's performance at Radar festival in Manchester was cancelled after singer Bobby Vylan, whose real name is reportedly Pascal Robinson-Foster, 34, led crowds in chants of "death, death to the IDF (Israel Defence Forces)" during their Saturday afternoon set at Glastonbury.