During the Glastonbury performance, which is aired annually on BBC, one of the group’s members, Bobby Vylan, led the crowd to chant, “Death to the IDF,” referring to the Israel Defense Forces, to the shock of organizers and onlookers.

The British punk-rap duo Bob Vylan has been denied entry to the United States after sparking international controversy with a fiery and politically charged performance at the Glastonbury Music Festival on Saturday.